Using what you learned from this lab describe how you receive colors from the various object observed in our world. discuss how we receive colors from objects to omit light such as tvs, objects i don’t emit light such as colored paper, and how filters on our eyes work such as sunglasses. keywords: phototons, wavelength, and colors that just red, green, and blue.
Answers
Color perception is determined by wavelengths of light, red, green, and blue make colors for objects that emit light. The color we see for objects not emitting light is based on reflected light. Sunglasses and filters change perceived colors by blocking certain wavelengths of light.
Color perception is a complex phenomenon that involves the interaction between light and objects in our environment. The colors that we see are determined by the wavelengths of photons that are reflected or emitted by objects. When light hits an object, some photons are absorbed while others are reflected, and the reflected photons are what we see as color.
For objects that emit light, such as TVs and computer screens, the colors are created by combining just three primary colors: red, green, and blue. By varying the intensity of these three colors, the screen can create a wide range of hues and shades.
For objects that do not emit light, such as colored paper, the color that we see is determined by the wavelengths of light that are reflected by the object. For example, a red piece of paper appears red because it reflects red light and absorbs other wavelengths.
Filters, such as sunglasses, work by selectively blocking certain wavelengths of light. This changes the colors that we perceive, as some colors are absorbed while others are allowed through.
In summary, color perception is based on the wavelengths of photons reflected or emitted by objects. For objects that emit light, colors are created by combining red, green, and blue.
For objects that do not emit light, the color that we see is determined by the wavelengths of light that are reflected. Filters, such as sunglasses, work by selectively blocking certain wavelengths of light to change the colors that we perceive.
To know more about wavelengths refer here:
https://brainly.com/question/10600766#
#SPJ11
Related Questions
Two football players have a head-on collision and grab onto each other's uniforms. The 80
kg Pennridge Ram was moving at 3 m/s, while the 70 kg Souderton player was moving in
the opposite direction at 2.5 m/s. What is their final velocity after impact?
Answers
The force pulling the moon toward Earth depends on the mass of the two bodies and which factor?.
Answers
My grass is dying and I believe that it is not getting enough water so I decided to conduct a experiment
Answers
In context of nepal it is better to use energy like solar power .why?
Answers
Answer:
Nepal is one of the least developed countries. Solar power is well-founded than electricity. It's better to use solar power because it's a clean resource, the sun provides more energy than we will ever need.
Explanation:
while it is easy to lay a pen horizontally on a table, it can be exceptionally difficult to balance it vertically on its narrow end. why?
Answers
The pen's narrow end provides a small surface area for it to balance on, making it more difficult to stay upright.
Balancing a pen verticallyThis is because the pen is not symmetrical and has a wide top compared to the bottom. The wider top will cause the pen to easily tip over when placed on its narrow end due to the unbalanced weight distribution.
Balancing a pen vertically on its narrow end also requires a steady hand and a great deal of focus. The pen must be held perfectly still and be placed gently in order to maintain its balance. If the pen is shifted even slightly, it can easily fall off of its narrow end. Additionally, the surface the pen is placed on must be even and stable to provide a solid base for it to balance on.
Learn more about center of gravity here:
https://brainly.com/question/24553858
#SPJ1
The Voyager 1 space probe was launched by NASA in 1977. It's now the most distant spacecraft from Earth, as it hurtles into space at over 60,000 km/h. It has run out of fuel, so it can't change its own motion.
One of your friends says, "If Voyager 1 doesn't collide with anything and is too far from anything to be affected by gravity, it will gradually slow down and stop."
I have to either agree or disagree with my friend, then i have to explain.
Answers
The statement, "The Voyager 1 space probe can't change its own motion" is correct and true. The Voyager 1 space probe was launched by NASA in 1977, and since then it has traveled over 14 billion miles away from Earth. It's the most distant spacecraft from Earth.
The Voyager 1 was designed to study the outer solar system and it sent valuable data back to Earth. But, now it has run out of fuel and cannot change its own motion as the thrusters that are responsible for keeping the spacecraft’s antenna pointed toward Earth have to be continuously fired to compensate for the small natural imbalances in its motion. Therefore, the statement is correct that Voyager 1 cannot change its own motion. It is still continuing its journey into space at a speed of over 60,000 km/h and is expected to keep traveling until it reaches other stars and the next galaxy beyond our Milky Way. So, I agree with the statement that the Voyager 1 space probe can't change its own motion.For such more question on motion
https://brainly.com/question/26083484
#SPJ8
if 1,000 J of energy is added to a steak engine, and 400 J of work is done by the engine, how much thermal energy ends up being added to the engine
Answers
Answer:
To indicate that energy has been added or removed as heat or work to a system, the internal energy of the system is calculated.
This is because:
1- the internal energy follows the formula:
ΔU = Q - W
2- the internal energy is indicated by any alternation in temperature
Therefore, the answer is:
internal energy
19. The continuity equation for compressible liquid can be written as
Answers
Answer:The continuity equation for a compressible liquid is a mathematical expression that relates the changes in fluid density, velocity, and volume to the changes in time. This equation can be written as:
∂ρ/∂t + (ρv)•∇ = 0
where:
ρ = fluid density
v = fluid velocity
∂/∂t = partial derivative with respect to time
∇ = del operator
The continuity equation expresses the principle of mass conservation, stating that the rate of change of fluid density in a fixed volume must be equal to the rate of flow of fluid into or out of that volume. This equation is commonly used in fluid dynamics to study the behavior of liquids and gases in various applications, such as in pipelines, pumps, valves, and compressors.
Explanation:
properties can be used to distinguish and separate substances.
Answers
Answer:
true
Explanation:
In a reverse fault, where does the hanging wall move relative to the footwall?
Answers
Answer:
In reverse faults, the hanging wall moves upwards relative to the footwall.
Question 5 Marks: 1 In the rectangular furnace, the grates are arranged inChoose one answer. a. arches b. rectangles c. tiers d. circles
Answers
In a rectangular furnace, the grates are typically arranged in rectangular shapes. Grates are horizontal bars or grids that are used in a furnace for supporting the fuel, such as wood, coal, or other combustible materials, during combustion.
Grates are arranged in a rectangular pattern to provide structural support and allow for efficient burning of the fuel. The rectangular arrangement of grates allows for even distribution of heat and combustion air, facilitating the combustion process in the furnace. Grates in a furnace serve multiple purposes. They support the fuel, such as wood or coal, allowing it to burn evenly and efficiently. They also provide spaces or gaps between the bars, which allow for the passage of air, oxygen, and combustion gases. This helps to regulate the airflow and maintain proper combustion conditions within the furnace.
Learn more about furnace here:
https://brainly.com/question/27625744
#SPJ11
What is Justice according to philosophy
Answers
Answer:
justice. just in nature.
Explanation:
the concept of a proper proportion between a person's deserts (what is merited) and the good and bad things that befall or are allotted to him or her. ... Aristotle's discussion of the virtue of justice has been the starting point for almost all Western accounts.
I NEED HELP I AM SO CONFUSED, WILL GIVE BRAIN.
1. What is the acceleration of a spaceship that can accelerate from 10,000 m/s to 17,500 m/s in 20 seconds?
2. How long does it take the principal to run to our classroom, if the distance is 125 meters, and he accelerates, from rest, at a rate of 4 m/s^2?
3. A pen falls off my desk. It took 1.5 seconds to fall. What was the velocity of the pen just before it hit the ground?
4. You are standing at the edge of a cliff that is 40m tall. You throw an apple down with a speed of 15 m/s. How long does it take to fall to the bottom of the cliff?
5. A stone is dropped from the roof of a building. It took 5 s for the stone to reach the ground. What is the height of the building?
6. A man is on a 30m cliff and throws a ball down with a speed of 7 m/s.
A) With what velocity does the ball hit the ground? B) How high above the ground is the ball after the ball has fallen for 1 second?
7. A watermelon is dropped from rest from the top of a 20m cliff. A) How long does the watermelon be in the air?
B) What was the watermelon’s final velocity?
Answers
The kinematic relations allow finding the results for the different questions are:
1. The acceleraations is a = 375 m/s²
2. The time is t = 62.5 s
3. The velocity at the ground is v = -14.7 m / s
4. The time to the bottoncliff is 1.7 s
5. The height isy₀ = 122.5 m
6.
A) The velocity is v = 25.2 m / s
B) The height for t=1 s is y = 18.1 m
7.
A) Time in the air is t = 2 s
B) The final veloicty is v = - 19.6 m / s
Kinematics analyzes the movement of bodies, finding relationships between the position, velocity and acceleration of bodies.
Let's look for the answers to a series of questions:
1. They indicate the initial and final velocities of the body and the time to reach it is 20 s, ask how much the acceleration is worth
Let's use the relationship
v = v₀ + a t
a = \(\frac{v-v_o}{t}\)
a = \(\frac{17500-10000}{20}\)
a = 375 m/s²
2. What is the time it takes to travel a distance of 125 m with an acceleration of 4 m / s²
x = v₀ t + ½ a t²
As it leaves the direction its initial velocity is zero
x = ½ to t²
t = \(\sqrt{\frac{2x}{a} }\)
t = \(\sqrt{\frac{2 \ 125}{4} }\)
t = 62.5 s
3. A pencil falls from a height and reaches the floor in a time of 1.5 s what is the speed when reaching the floor
v = v₀ - g t
As it is released its initial velocity is zero
v = -g t
v = - 9.8 1.5
v = -14.7 m / s
The negative sign indicates that the velocity is directed downwards.
4. From the edge of a cliff 40 m high, an apple is thrown downward with an initial velocity of 15 m / s. How long does it take to get to the bottom?
y = y₀ + v₀ t - ½ g t²
In this case the initial velocity is negative because it is directed downwards and when it reaches the floor its height is zero, let us substitute
Suppose the acceleration is g = 10 m / s²
0 = 40 - 15 t - ½ 10 t²
0 = 40 - 15 t - 5 t²
let's solve the quadratic equation
t² + 3 t - 8 = 0
t = -3 + Ts 9 + 4 8/2
t = -3 + 6. 4/2
t₁ = - 4.9 s
t₂ = 1.7 s
The time must be a positive quantity, so the correct answer is 1.7 s
5. A stone is dropped from the ceiling and it takes a time 5 s to reach the floor, which is the height of the ceiling
y = y₀ +v₀ t - ½ g t²
as it is released from the ceiling its initial velocity is zero and the height upon reaching the floor is zero
0 = y₀ + 0 - ½ g t²
y₀ = ½ g t²
y₀ = ½ 9.8 5²
y₀ = 122.5 m
6. A man at a height of 30 m throws a ball downward at 7 m / s
A) The speed when reaching the ground
B) The height of the ball when a time of 1 s has fallen.
A) Let's use the kinematics relation
v² = v₀² - 2 g (y -y₀)
v = 7² - 2 9.8 (0 -30)
v = 25.2 m / s
B) y = y₀ + v₀ t - ½ g t²
y = 30 7 1 - ½ 9.8 1²
y = 18.1 m
7. A watermelon is dropped from rest from the top of a 20m cliff.
A) time in the air
B) ground speed
A) Let's use the relation
y = y₀ + v₀ t - ½ g t²
It is released its initial velocity is zero and when it reaches the ground its height is zero (y = 0)
0 = y₀ + 0 - ½ g t²
t = \(\sqrt{\frac{2y_o}{g} }\)
t = \(\sqrt{\frac{2 \ 20}{9.8} }\)
t = 2 s
B) the speed when reaching the ground
v = v₀ - g t
v = 0 - 9.8 2
v = - 19.6 m / s
The negative sign indicates that the speed is down
In conclusion using the kinematic relations we can find the results for the different questions are:
1. The acceleraations is a = 375 m/s²
2. The time is t = 62.5 s
3. The velocity at the ground is v = -14.7 m / s
4. The time to the bottoncliff is 1.7 s
5. The height isy₀ = 122.5 m
6.
A) The velocity is v = 25.2 m / s
B) The height for t=1 s is y = 18.1 m
7)
A) Time in the air is t = 2 s
B) Te final veloicty is v = - 19.6 m / s
Learn more here: brainly.com/question/15068914
Problem
Position The figure shows a motorcyclist traveling east along a straight
road. After passing point B, the cyclist continues to travel at an average
velocity of 18 m/s east and arrives at point C2.8 s later. What is the
position of point ?
Answers
Answer:
s = 50.4 m
Hence, the point C is 50.4 m towards east from point B
Explanation:
Since, the motorcyclist travels at a constant speed in straight line towards east after point B. Therefore, we can use the following equation in this case:
s = vt
where,
s = distance covered = position of point C = ?
v = uniform speed of motorcyclist = 18 m/s
t = time interval = 2.8 s
Therefore,
s = (18 m/s)(2.8 s)
s = 50.4 m
Hence, the point C is 50.4 m towards east from point B
water is not used as thermometric liquid.why?
Answers
Answer:
Water cannot be used in thermometer because of its higher freezing point and lower boiling point than other liquids . If water is used in a thermometer , it will start phase change at 0\(degree\\\)C and 100\(degree\)C and will not measure temperature , out of this range . This range is very small as compared to other liquids as mercury , having freezing point about −39\(degree\)C and boiling point 356\(degree\)C.
Explanation:
Explain why it is more difficult to balance a nail on its tip than on its base.
note:please dont answer according to presuure concepts,answer according to equilibrium concepts.thanks.
Answers
It is much easier to balance a thing that has a large base of support and a low center of gravity. The object won't topple over as a result of little center of gravity wobble because of the wide base and low center of gravity. Therefore, balancing a nail on its base as opposed to its tip would be simpler.
PLEASE HELP 50 AND BEST ANSWER
Begin by printing out a copy of the periodic table. Use the file attached to the assignment page or download the file from the Course Resources folder.
1. Label the rows as the electron energy levels.
2. Label the number of valence electrons in Columns 1,2, and 13-18.
3. Label the metals, semi-metals, and non-metals using different colors. Make sure you don't obscure any of the information about different elements by coloring.
4. Label the ion charges for elements in the first 3 rows. Remember all the elements in Columns 1,2,16,17,18 will always have the same charge. Elements in Columns 13,14, or 15 can have different charges within the same row it's especially useful to write these charges on your periodic table. --
5. Label the trends for atomic size, ionization energy, and electron affinity.
Answers
Label the rows as the electron energy levels:
The rows of the periodic table are also known as periods. There are seven periods, and each period corresponds to a particular energy level. You can label them from 1 to 7, starting from the top row.
What are the responses to other questions?Label the number of valence electrons in Columns 1, 2, and 13-18:
Columns 1 and 2 are the s-block elements, and they have 1 and 2 valence electrons, respectively. Columns 13-18 are the p-block elements, and they have 3 to 8 valence electrons, respectively. You can label the number of valence electrons in each column.
Label the metals, semi-metals, and non-metals using different colors:
Metals are on the left side of the periodic table, semi-metals are in the middle, and non-metals are on the right side. You can use different colors to label them without obscuring any of the information about different elements.
Label the ion charges for elements in the first 3 rows:
Elements in the first 3 rows of the periodic table have predictable ion charges. The alkali metals (Group 1) have a charge of +1, the alkaline earth metals (Group 2) have a charge of +2, and the elements in Group 13 have a charge of +3. For Groups 15, 16, and 17, the charges are -3, -2, and -1, respectively. The noble gases (Group 18) are unreactive and do not form ions. You can write these charges for each element in their respective positions.
Label the trends for atomic size, ionization energy, and electron affinity:
Atomic size generally decreases from left to right across a period and increases from top to bottom within a group. Ionization energy generally increases from left to right across a period and increases from bottom to top within a group. Electron affinity generally increases from left to right across a period and becomes less negative from top to bottom within a group. You can label these trends on your periodic table as well.
learn more about electron energy levels: https://brainly.com/question/28101665
#SPJ1
help please.
How many days occur between a new moon and a first quarter moon?
Answers
Answer:
7 days or a week
Explanation:
easy one giving brainly if correct
Answers
Answer:
c) Liquid
Explanation:
Liquid takes the shape of its container and has a specific volume. On the other hand, solid and gas don't.
Find the volume of the following shape.
7 km
5 km
1.9 km
3 km
3 km
Round to the nearest hundredth.
Answers
The volume of the triangular shape is 10.35 km³.
In geometry, volume is the amount of space enclosed by a three-dimensional object. It is measured in cubic units, such as cubic meters or cubic centimeters. The volume of a regular object can be calculated using a formula, while the volume of an irregular object can be calculated by dividing it into smaller regular objects and adding up their volumes.
For example, the volume of a cube with a side length of 1 meter is 1 cubic meter. The volume of a sphere with a radius of 1 meter is 4/3π cubic meters. The volume of a cylinder with a radius of 1 meter and height of 2 meters is 2π cubic meters.
The formula gives the volume of a triangular shape:
V = 1/2 * b * h * t
where:
b is the base of the triangle
h is the height of the triangle
t is the thickness of the triangle
In this case, we have:
b = 7 km
h = 1.9 km
t = 3 km
So now, the volume of the triangular shape is:
V = 1/2 * 7 km * 1.9 km * 3 km = 10.35 km³
Therefore, the volume of the triangular shale is 10.35 km³.
To learn more about volume click:
https://brainly.com/question/32551355
#SPJ1
our electric drill rotates initially at 5.47 rad/s.5.47 rad/s. you slide the speed control and cause the drill to undergo constant angular acceleration of 0.379 rad/s20.379 rad/s2 for 4.05 s.4.05 s. what is the drill's angular displacement during that time interval?
Answers
31.257 radian is the drill's angular displacement during that time interval.
initial angular speed ω0 = 5.27 rad/sec , ang.acceleration α = 0.399 rad/s2 , time t = 4.99 sec
angular displacement
θ = ω0 t + 1/2×αt^2
solving we get
θ = 31.257 rad
The angle at which a point revolves about a center or a line around a certain axis is known as the angular displacement of a body. We cannot examine a body's motion as a particle when it is moving or being rotated on its axis.
Rotational motion is the movement of a rigid body about a fixed axis. When the body or item is thought of being rigid, dealing with rotation is made simpler and easier. At every moment (t), the item experiences a change in acceleration and velocity similar to circular motion.
To know more about angular displacement visit : https://brainly.com/question/28449173
#SPJ4
50 POINTS!! BRAINLEST
Answers
Answer:
The lines are parallel and the students data is 13
Explanation:
The amount of salt added
There are several methods of extrasolar planet detection currently in use. Which properties of a planet does each method discover? sort the following methods into the appropriate categories.
Answers
The complete box as per methods of extrasolar planet detection
Diameter of the
Transit methodMass of the planet
Microlensing methodRadial velocity methodAstrometry methodThis is further explained below.
What are the methods of extrasolar planet detection?Generally, The techniques for finding planets beyond the solar system
Microlensing caused by gravitational forces occurs when a star that contains a planet moves in front of another star. This causes the light to bend in a peculiar manner.
The transit method takes into account the varying luminosities of the stars. When a planet passes in front of a star, the star's apparent brightness decreases, which provides information about the planet's radius or diameter.
The radial velocity method analyzes the Doppler shift of a star to determine whether the star is moving closer or farther away from us.
Method of astronomy that is based on variations in the positions of stars in the sky.
Read more about planet detection
https://brainly.com/question/14141313
#SPJ1
Refracting telescopes with larger diameters are not constructed because they could ... A. sag (flex) too much under the weight of the lens and would be too hard to build. B. be too thick, and suffer too much spherical aberration. C. give too much magnification. D. have too little chromatic aberration.
Answers
The correct answer is A. Refracting telescopes use lenses to bend and focus light to produce an image. One of the main limitations of refracting telescopes is the size of the lens.
As the diameter of the lens increases, the lens becomes thicker and heavier, which can lead to problems such as sagging or flexing, which can distort the image. Additionally, a larger lens can suffer from spherical aberration, which occurs when the outer edges of the lens bend light more than the center, causing blurring and distortion in the image. sag (flex) too much under the weight of the lens and would be too hard to build.
Refracting telescopes use lenses to bend and focus light to produce magnified images. One of the challenges of constructing refracting telescopes is the potential for aberrations, or distortions in the image produced. As the diameter of the lens increases, so does its weight, which can cause the lens to sag or flex, leading to distortion in the image. This is why option A, "sag (flex) too much under the weight of the lens and would be too hard to build," is the correct answer.Option B, "be too thick, and suffer too much spherical aberration," is not entirely accurate. While thicker lenses can suffer from spherical aberration, this is not the primary reason why larger diameter refracting telescopes are not constructed.
Option C, "give too much magnification," is not a reason why larger diameter refracting telescopes are not constructed. Magnification is determined by the focal length of the telescope, not its diameter.
Option D, "have too little chromatic aberration," is also not a reason why larger diameter refracting telescopes are not constructed. Chromatic aberration is a type of distortion caused by the lens separating different colors of light at different angles. While larger lenses can potentially exhibit more chromatic aberration, this is not the primary reason why larger diameter refracting telescopes are not constructed.
For more questions like weight visit the link below:
https://brainly.com/question/12984398
#SPJ11
12 A car travels in a straight line at speed v along a horizontal road. The car moves
against a resistive force F given by the equation
F = 400+kv²
where F is in newtons, v in ms-1 and k is a constant.
At speed v = 15ms-1, the resistive force F is 1100 N.
a
Calculate, for this car:
i the power necessary to maintain the speed of 15ms-¹,
ii the total resistive force at a speed of 30 ms-¹,
iii the power required to maintain the speed of 30ms-¹.
Answers
Answer:
i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii) Find the value of k first: F = 400 + k(15^2) k = 28/9 F = 400 +(28/9)(30^2) = 320
Explanation:
P = (400 + k * 15²) * 15
P = (400 + 11250) * 15
P = 11650 Watts
Therefore, the power necessary to maintain the speed of 15ms^-1 is approximately 11650 Watts.
b. The total resistive force at a speed of 30ms^-1 can be found by substituting 30 for v in the force equation:
F = 400 + k * 30^2
F = 12000 N
Therefore, the total resistive force at a speed of 30ms^-1 is approximately 12000 N.
c. The power required to maintain the speed of 30ms^-1 can be found using the same equation as in part a:
P = (400 + k * 30^2) * 30
P = (1500 + 600000) * 30
P = 625000000 Watts
Therefore, the power required to maintain the speed of 30ms^-1 is approximately 625000000 Watts. This is a very large amount of power and would require a significant amount of energy to maintain.
You walk in a straight line for 95 m at an angle of 162° above the positive x axis. What are the x and y components of your displacement?
Answers
Answer:
Explanation:
{ r, θ ) = [ r cosθ i , r sinθ j ]
( 95m , 162°) = [ 95 cos 162 i, 95 sin 162 j]
( 95m , 162°) = [ 95 * -0.951 i, 95 * 0.309 j]
( 95m , 162°) = -90.342 i, 29.355 j =
[ -90.34 m i , 29.36 m j ]
Therefore, the displacement of x and u components are
x displacement = -90.35 m and y displacement = 29.36 m
round appropriately
If a 60 W light bulb, powered with 620,000 J of energy, in a bedside lamp is only 20 percent efficient in converting electrical energy into light energy, how many joules of light energy does this light bulb produce each time?
Answers
Answer:
720 Joules
Explanation:
Given: 60 W light bulb powered by 620,000 J of energy. 20 percent efficient in converting electrical energy into light energy
To find: how many joules of light energy does this light bulb produce each time?
Formula: \(E = \frac{hc}{A}\)
Solution: The total amount of energy generated by the light bulb every minute is 3600 Joules. If the light bulb is only twenty (20) percent efficient in converting that energy to visible light energy, that would be twenty percent of the total.
E (Joules) = P (Watts) X t (seconds)
E = 60 W X 60 seconds
E = 3600 Joules of energy
20% of 3600 = 720 Joules
Therefore, it produces 720 joules of light each time.
I WILL GIVE YOU BRAINLIEST IF YOU ANSWER THOS QUESTION IN THE NEXT 5 MINUTES!!
A red shopping cart with a mass of 20kg is being moved by 2 people in the
same direction. One person is pushing the red shopping cart with a force
of 2N, and the other person is pulling it in the same direction with a force
of 3N. A blue shopping cart with the exact same mass (20kg) is being
pushed by a single person with a force of 5N. Which shopping cart will have
a higher rate of acceleration? (hint: you may want to draw the shopping
carts and the forces exerted on a piece of paper... it will make it easier to
solve) *
impossible to tell because the blue cart is only being pushed and not pulled
the blue cart will have a higher rate of acceleration
the red cart will have a higher rate of acceleration
both carts will have a similar rate of acceleration
Answers
Answer:
the blue shopping cart.
Explanation:
The blue shopping cart doesnt have to worry about running someone over in the front. The red one does, so it slows down more.
Suppose that you observe a spaceship passing in front of you at a relative velocity v=0.75c. According to a clock on Earth, 2.5 seconds passed in the spaceship clock.Find the time elapsed for an observer inside the spaceship.
Answers
Given,
The velocity of the spaceship in as observed by an observer at the earth, v=0.75c
The time interval as observed by the observer on the earth, t₁=2.5 s
The time elapsed in the ship's frame of reference is given by,
\(t_2=\frac{t_1}{\sqrt[]{1-\frac{v^2}{c^2}}}\)On substituting the known values,
\(\begin{gathered} t_2=\frac{2.5_{}}{\sqrt[]{1-\frac{(0.75c)^2}{c^2}}} \\ =\frac{2.5}{0.66} \\ =3.79\text{ s} \end{gathered}\)Thus the time elapsed for an observer in the spaceship is 3.79 s
As seen from Earth, the Sun has an apparent magnitude of about −26.7. What is the apparent magnitude of the Sun as seen from Saturn, about 10 AU away? (Remember that one AU is the distance from Earth to the Sun and that the brightness decreases as the inverse square of the distance.) Would the Sun still be the brightest star in the sky?
Answers
The Sun would still be the brightest star in the sky as seen from Saturn.
How to determineThe apparent magnitude of the Sun as seen from Saturn would be approximately -20.7. This is calculated using the inverse square law, which states that the brightness of an object decreases as the inverse square of the distance.
In this case, the distance between Earth and Saturn is 10 AU, so the brightness of the Sun would decrease by a factor of 10^2, or 100.
The apparent magnitude of the Sun as seen from Earth is -26.7, so the apparent magnitude of the Sun as seen from Saturn would be -26.7 + 5*log(100) = -20.7. Even though the apparent magnitude of the Sun is lower as seen from Saturn, it would still be the brightest star in the sky.
The next brightest star, Sirius, has an apparent magnitude of -1.46, which is much lower than the apparent magnitude of the Sun as seen from Saturn. Therefore, the Sun would still be the brightest star in the sky as seen from Saturn.
Learn more about apparent magnitude at
https://brainly.com/question/28874252
#SPJ11