Answers
Answer and Explanation:
The estimation of the mass of the objects is as follows
Given that
The mass of an apple is about 100 g
Just like that, we do some estimation of different objects
A dime is around 1 g
A smartphone is about 100 g
An adult male is approx 100 kg
A college physics textbook is around 1 kg
A ripe banana is around 100 g
A small car is around 1,000 kg
Related Questions
the very act of observing a particle has a dramatic effect on its behaviour why do you think this is the case
Answers
Answer:
Explanation:
In the microscopic world of quantum mechanics, particles don't behave like familiar everyday objects. They can exist in multiple states simultaneously and behave as both particles and waves. When we try to measure or observe a particle, we typically use light or other particles to interact with it. However, this interaction can disturb the particle's state. Imagine trying to measure the position of an electron using light. Light consists of photons, and when photons interact with the electron, they transfer energy to it. This energy exchange causes the electron's position and momentum to become uncertain. The more precisely we try to measure its position, the more uncertain its momentum becomes, and vice versa. This is known as the Heisenberg uncertainty principle.
So, the act of observing a particle disturbs its state because the interaction between the observer and the particle affects its properties. The very act of measurement or observation introduces a level of uncertainty and alters the particle's behavior. It's important to note that this behavior is specific to the quantum world and doesn't directly translate to the macroscopic world we experience in our daily lives. Quantum mechanics operates at extremely small scales and involves probabilities and uncertainties that are not typically noticeable in our macroscopic observations.
Which statement is true about the theory of plate tectonics and the theory of continental drift?
A) The theory of plate tectonics proves the theory of continental drift completely wrong.
B) The theory of plate tectonics tells exactly where the continents were before Pangaea divided.
C) The theory of plate tectonics gives the method by which continents can move as part of plates.
D) The theory of plate tectonics does not explain how continental movements could occur.
Answers
The statement that is true about the theory of plate tectonics and the theory of continental drift C. The theory of plate tectonics gives the method by which continents can move as part of plates .
What is theory of plate tectonics and the theory of continental drift ?According to the scientific hypothesis of plate tectonics, the underground movements of the Earth create the primary landforms. By explaining a wide range of phenomena, including as mountain-building events, volcanoes, and earthquakes, the theory, which became firmly established in the 1960s, revolutionized the earth sciences.
The scientist Alfred Wegener is most closely connected with the concept of continental drift. Wegener wrote a paper outlining his notion that the continents were "drifting" across the Earth, occasionally crashing through oceans and into one another, in the early 20th century.
According to tectonic theory, the Earth's surface is dynamic and can move up to 1-2 inches every year. The numerous tectonic plates constantly move and interact. The outer layer of the Earth is altered by this motion. The result is earthquakes, volcanoes, and mountains.
Therefore, option C is correct.
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An 82kg male and 48kg female pari figure starting team are gliding across the ice of 7.4m/s preparing for a throw jump maneuver. The male starter tosses the female starter forward with a speed of 8.6n/s. Determine the speed of the male starter immediately after the throw.
Answers
Answer:
Explanation:
(m1 + m2)*V1 = m2*V2 + m1*Vx
Vx = ((m1 + m2)*V1 - m2*V2) / m1
Vx = ((82 + 48)*7.4 - 48*8.6) /82 = 6.7 m/s
Consider the collision between the moving cue ball and the red 15 ball
that is at rest on the table pool. All BUT ONE statement describes what
occurs when the cue ball collides with the 15 ball,
A)
Each ball experiences an equal force directed in
opposite directions,
B)
The 15 ball experiences a rightward force that causes
it to speed up.
The acceleration of the 15 ball is greater than that of
the cue ball.
The moving cue ball experiences a leftward force
that causes it to slow down.
9
D)
Answers
From the laws of Newton, the balls experiences an equal force directed in opposite directions.
What is collision?Collision is said to occur when on object bumps into another. Collisions are described by the law of conservation of linear mometum which ststes that momentum is neither created nor destroyed.
The question is incomplete hence we can not fully answer the question. However, from the laws of Newton, the balls experiences an equal force directed in opposite directions.
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The amount of work done on an object is the force applied to the object times the distance the object is moved while the force is applied or, more succinctly, work = (force)(distance). We will use the International System of Units: Force is measured in Newtons, N, and distance is measured in meters, m. Weight is the gravitational force applied to the object and cable, therefore, weight = force. Cable (3 N per m) 40 - X Object (1500 N) Ax How much work is done lifting a 1500 N object from the ground to the top of a 40 m building if the cable weighs 3 N per m? Here the 1500 N object is constant, but as you retract the cable, the overall weight (force) decreases. The diagram to the right can help you derive the integral to calculate the work done from the ground to the top of the buildingX1=40X2=0
Answers
The Total work done = work done on the object + work done on the cable
From the given information,
weight of the object is = 1500 N
weight of rope is = 3N per m
height interval is = 0 to 40 m
Work = force x distance
If distance = x, then, we have the integral below as shown in the image:
By substituting x = 40 and x = 0, it becomes
1620(40) - 3/2 * (40)^2 - 1620(0) - 3/2 * (0)^2
= 64800 - 2400
= 62400 Nm
the work done from the ground to the top of the building is 62400 Nm
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Which has the greater kinetic energy–a 1-ton car moving at 30 m/s or a half-ton car
moving at 60 m/s?
A) Both have the same kinetic energy
B) The half-ton car
C) The 1-ton car
D) It cannot be determined because the mass of the cars can't be found
Answers
Answer:
B). half-ton car
Explanation:
We can find Kinectic using below expresion.
m= mass of the object
v= velocity
mass (1) 1 ton= 1000kg
Mass(2)0.5= 500kg
K.E= 1/2 mv^2
For 1 ton car
Substitute the values
Kinectic energy= 1/2( 1000) 30^2
= 450,000J
For 0.5 ton car
Kinectic energy= 1/2(500)60^2
= 900,000J
Hence, half-ton car has greater Kinectic energy
"Part B? Question
The total resistance in a circuit with two parallel resistors is 2 ohms and $R_1$ is 6 ohms. Using the equation for R₂, in terms of Rt and R₁, what is R₂ ?
R₂ is ohms."
Answers
The value of R₂, given that the total resistance in a circuit with two parallel resistor is 2 ohms, is 3 ohms
How do I determine the value of R₂?The formula to obtain the total resistance in a parallel connection for two resistors is given as folllow:
Rₜ = (R₁ × R₂) / (R₁ + R₂)
With the above formula, we can obtain the value of R₂. Details below:
Total resistance (Rₜ) = 2 ohmsResistor 1 (R₁) = 6 ohms Resistor 2 (R₂) = ?Rₜ = (R₁ × R₂) / (R₁ + R₂)
2 = (6 × R₂) / (6 + R₂)
2 = 6R₂ / (6 + R₂)
Cross multiply
2 × (6 + R₂) = 6R₂
Clear bracket
12 + 2R₂ = 6R₂
Collect like terms
12 = 6R₂ - 2R₂
12 = 4R₂
Divide both sides by 4
R₂ = 12 / 4
R₂ = 3 ohms
Thus, we can conclude that the value of R₂ is 3 ohms
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Scientists launch a rocket, and they monitor its acceleration and the force exerted by its engines. As the rocket gets higher, the monitors show that the acceleration of the rocket is increasing but the force exerted stays the same. How do Newton’s laws explain why the scientists could expect this to happen? The total force stays the same, but the action force is increasing as the reaction decreases. The mass of the rocket decreases as fuel is burned, so the acceleration increases. The inertia of the rocket increases, which reduces the force needed to change its speed. The reaction force is increasing as fuel is burned, which causes a greater acceleration.
Answers
Newton’s laws explain why scientists could expect this to happen , The mass of the rocket decreases as fuel is burned, so the acceleration increases, therefore the correct answer is option B.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum. The mathematical expression for Newton's second law is as follows
As given in the problem Scientists launch a rocket, and they monitor its acceleration and the force exerted by its engines. As the rocket gets higher, the monitors show that the acceleration of the rocket is increasing but the force exerted stays the same.
Newton's laws clarify why scientists may anticipate this to occur. The right response is option B because as fuel is burnt, the rocket's mass reduces, and its acceleration rises.
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How is an image from a CT scan made from 2D X-ray images?
A. The 3D image uses only the parts of the 2D images that show
transmission of X-rays.
B. A computer combines many 2D images into a 3D image.
C. Several fuzzy 2D images are combined to make a clearer 2D
image.
D. The CT scan machine pastes many smaller 2D images together to
make a larger 2D image.
Answers
Answer: i believe it’s c
Answer:
B. A computer combines many 2D images into a 3D image.
Explanation:
Did the test
Large amounts of electric charge can collect on clouds. What danger can this cause on tall buildings beneath the clouds
Answers
The block of mass m2 below has a gravitational Force with magnitude 711 N acting on it. The coefficient of static friction between the block and the table is µs = 0.25. The angle between the horizontal and the cable with tension T3 is θ = 30 degrees. Find the maximum possible mass m1 such that the system remains static.
Answers
The static state is achieved when the tow tension forces are equal. Here, the maximum weight for m1 which leads to the static condition is 88.8 N.
What is tension force?The force experienced by a material on which a mass is suspended is called its tension force. It is the sum of the normal force mg and the force ma.
The normal force on the weight m2 is given 711 N. The coefficient of static friction here is 0.5 .
the frictional force f = Nμ
f = 711 × 0.25 = 177.75 N.
Then, to attain the static state for all the three tension force, they have to be equal in magnitudes.
Hence,
T1 = T2 = T3
T2 - T1 cos 30 = 0
T2 = T2 sin30
T2 sin 30 = 177.75 N × sin 30 = 88.8 N.
To make the system static m1 have to be equal to 88.8 N.
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Given the functions f(x)=(1/x-3)+1 and g(x) = (1/1+4)+3
Which statement describes the transformation of the graph of function f onto the graph of function g?
O The graph shifts 2 units right and 7 units down.
O The graph shifts 7 units left and 2 units up.
O
e graph shifts 7 units right and 2 units down.
O The graph shifts 2 units left and 7 units up.
Answers
The statement that describes the transformation of the graph of function f onto the graph of function g is: The graph shifts 2 units right and 7 units down.
To determine the transformation of the graph of function f onto the graph of function g, we compare the two functions f(x) and g(x) and observe the changes in the equations.
The function f(x) = (1/x - 3) + 1 represents a reciprocal function that is shifted vertically 1 unit up and horizontally 3 units to the right. The reciprocal function is reflected about the line y = x.
The function g(x) = (1/(1 + 4)) + 3 simplifies to g(x) = 4 + 3 = 7, which is a constant function representing a horizontal line at y = 7.
By comparing the equations, we can see that the transformation from f(x) to g(x) involves the following changes:
The term 1/x in f(x) is replaced by the constant 1/(1 + 4) in g(x), resulting in a vertical shift of 7 units up.
The term -3 in f(x) is replaced by 3 in g(x), resulting in a vertical shift of 3 units up.
The +1 in f(x) is replaced by +3 in g(x), resulting in an additional vertical shift of 2 units up.
Therefore, the overall transformation is a shift of 2 units to the right and 7 units down.
Hence, the correct statement is: The graph shifts 2 units right and 7 units down.
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Water at the bottom of a falls has a velocity of 33 m/s after falling 25 m. What is the water speed at the top of the falls?
Answers
Answer:
Explanation:
Answer:
Speed of water at the top of fall = 5.40 m/s
Explanation:
We have equation of motion
Here final velocity, v = 26 m/s
a = acceleration due to gravity
displacement, s = 33 m
Substituting
Speed of water at the top of fall = 5.40 m/s
A boat travels at 15 m/s in a direction 45° east of north for an hour. The boat then turns and travels at 18 m/s direction 5° north of east for an hour. What is the magnitude of the boat's resultant velocity? Round your answer to the nearest whole number. m/s What is the direction of the boat's resultant velocity? Round your answer to the nearest whole degree. • north of east
Answers
The boat’s resultant velocity is v = 31.0 m/s, and the direction of the boat is 23.2 degrees north of east.
A resultant velocity is calculated using the formula below.
Vm equals Sum Sqrt(Vxi2 + VYj2)
where Vm is the resulting magnitude of velocity.
All x-component velocities are denoted by the letters Vxi.
The y-component of all velocities is called Vyj.
Add all of the values for the x-components together, square that number to get the magnitude of the resultant velocity. Add this to the earlier value after doing the same operation for the y-components. Finally, to determine the magnitude, square the result.
Tan-1 (Vx/Vy) = Va
where Va is the resultant velocity's angle.
Vx is the size of the resultant velocity's x-component.
Vy is the size of the resultant velocity's y-component.
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Why does passing a current through a wire create a magnet?
a. The protons create an electrical charge.
b. The electrons create an electrical charge
C. The protons create a magnetic charge.
d. The electrons create a magnetic field.
Please select the best answer from the choices provided
Ο Α
OB
C
OD
Answers
Passing a current through a wire create a magnet because the electrons create a magnetic field.
Is it possible for a wire's current to generate a magnetic field?
Flemming's Right Hand Rule states that while a current flows, it generates a magnetic field all around it. The magnetic field produced by the wire's electric current will repel both poles of the magnet by bending away from the wire since it is changing directions around the wire. Magnetic fields are produced when moving electric charges (electrons in a circuit) move, and vice versa (electricity).
A wire heats up when a current flows through it because some of the electrical energy is transformed into heat energy due to resistance the wire encounters. This is referred to as the electric current's heating impact.
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the principle of conservation of energy states that energy is neither created nor destroyed. which of the following describes the transformation of energy in this problem? the principle of conservation of energy states that energy is neither created nor destroyed. which of the following describes the transformation of energy in this problem? conservation of energy does not apply to problems involving nonconservative forces. thus, the potential energy slowly disappears during albertine's trip. the potential energy was turned into albertine's kinetic energy, which was then converted into internal (thermal) energy. the potential energy was turned into albertine's kinetic energy, which is now stored in the floor as frictional potential energy. the potential energy was turned into elastic frictional energy, creating the frictional force.
Answers
The principle of conservation of energy states that energy is neither created nor destroyed. The transformation of energy is described as B. the potential energy was turned into Albertine's kinetic energy, which was then converted into internal (thermal) energy
The principle of conservation of energy states that energy is conserved in a closed system, and it can neither be created nor destroyed. In this context, potential energy is converted to kinetic energy and then transformed into internal energy by Albertine during her trip. The potential energy of an object refers to the energy it possesses because of its position relative to other objects. The kinetic energy of an object refers to the energy it possesses due to its motion.
The internal energy of an object refers to the energy it possesses because of the movement of its atoms and molecules within itself. Hence, in this scenario, the potential energy of Albertine is converted into kinetic energy as she descends the stairs. This kinetic energy is then converted into internal energy due to frictional forces acting on the staircase floor. Therefore, option B is correct.
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What is the major difference between herbal and conventional medicines
Answers
Please help, I'm really struggling here, I can't do science :(
The mass of Jupiter is about 320 times the mass of Earth. However, Jupiter’s gravity affects Earth very little because_____________. a Earth is so far from Jupiter. b Earth is so small. c Jupiter is made of gas. d Jupiter is nearer to the sun than Earth is.
Answers
Answer:no sure sorry
Explanation:
Which one of the following statements describe the correct state on heating a piece of ice from -10°C to 0°C? A- Its latent heat of fusion increases. B- Its latent heat of fusion decreases. C- Its internal energy increases. D- Its internal energy remains constant.
Answers
Answer:
D- Its internal energy remains constant. As the ice is being heated from -10°C to 0°C, it is not yet melting or undergoing a change in phase. Therefore, there is no latent heat of fusion involved. The internal energy of the ice remains constant as it is only being heated and not actually changing phase.
Given: g=10 m/s^2
A car moves a distance of 80 m during
a time interval of 10 s. The average
speed v_avg of this car is:
2 m/s
6 m/s
O 10 m/s
O 8 m/s
O 4 m/s
Answers
During a 10-second period, a car travels 80 meters. This car typically travels at a speed of 8 m/s.
An illustration of average velocity.For instance, if it takes a person 40 minutes to travel 20 miles north, 20 miles south, and finally 20 miles in between, their average speed is 40 miles divided by 40 minutes, or 1 mile per minute. Instead of distance, average velocity takes into account total displacement.
How is average velocity calculated?The total displacement must be divided by the total time elapsed in order to determine the average velocity.
average velocity= total displacement/ total time
avg velocity=80/10=8m/s
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When one of the lamps on a string of lights breaks, the others go out as well. What does this tell you about the way the lamps are connected?
Answers
A car approaches a train station with a speed of 24 m/s. A stationary train at the station sounds its horn which has a frequency of 166 Hz. What frequency of sound is heard by the car's driver
Answers
Answer:
178.5 Hz
Explanation:
Given that a car approaches a train station with a speed of 24 m/s. A stationary train at the station sounds its horn which has a frequency of 166 Hz. What frequency of sound is heard by the car's driver ?
Solution
Using doppler effect formula
F = f ( V/ V- v)
Where F = frequency of sound heard by the car
f = train frequency
V = speed of sound
v = car speed
F = 166 ( 343 ÷ ( 343 - 24 ) )
F = 166 ( 343 / 319 )
F = 166 × 1.0752
F = 178.489 Hz
F = 178.5 Hz
Therefore, the frequency of sound heard by the observer in the car is 178.5 Hz approximately.
Select the correct answer.
The refractive index of medium A is 1.54 and that of medium B is 2.12. Which statement is correct about this information?
OA. ray of light passing from medium A to B can undergo total internal reflection.
OB. A ray of light passing from medium A to B will bend away from the normal.
OC. A ray of light passing from medium A to B will bend toward the normal.
OD. A ray of light passing from medium A to B can make a critical angle.
Answers
Answer:
C
Explanation:
C. A ray of light passing from medium A to B will bend toward the normal.
You find an old book and decide to estimate the thickness of one of the sheets or leafs. Neglecting the front and back cover, if all the sheets of book are 3 inches thick, and has 1024 marked pages (numbered 1 to 1024), what is the approximate thickness of the sheet in units of mm.
Answers
Explanation:
There are 1024/2 = 512 SHEETS (each is numbered on two sides)
3 inches * 25.4 mm/inch / 512 sheet = .1488 mm per sheet
A woman walks a distance of 504m, with and average speed of 1.4m/s. What time was required to walk this distance ?
Answers
A woman walks a distance of 504m, with an average speed of 1.4m/s. Therefore, 360 second time was required to walk this distance.
What is do you mean by speed ?The term speed is defined as the rate of change of position of an object in any direction.
The formula of speed is Speed = Distance / Time. The formula of time is Time = Distance / Speed. The formula of distance is Distance = Speed x Time.
Given:
Speed = 1.4m/s
Distance = 504m
Time = ?
Time = distance/ speed
Time = 504m / 1.4m/s
Time = 360 second
Thus, 360 second time was required to walk this distance.
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Calculate the average velocity of a dancer who moves 5 m toward the left of the stage over the course of 15 s. ** Velocity = displacement/time Question 1 options: A. 3 m/s B. 1/3 m/s C. 1/3 m/s west D. 3 m/s west
Answers
Answer:
B
Explanation:
Velocity=disp/time
V=5m/15s
V=1/3 m/s
Each of the following figures shows a person (not to scale) located on Earth at either 40°N or 40°S latitude. Rank the figures based on how much time the person spends in daylight during each 24-hour period, from most to least. To rank items as equivalent, overlap them.
Answers
The ranking is based on the tilt of the Earth's axis and its orbit around the Sun. The figure at 40°N in June receives the most daylight because it is located at a high latitude during the summer solstice in the Northern Hemisphere. The Earth's axis tilts towards the Sun, resulting in longer days and shorter nights. The figure at 40°S in December receives a moderate amount of daylight as it is located at a lower latitude during the summer solstice in the Southern Hemisphere.
The figure at 40°N in December experiences less daylight because it is located at a high latitude during the winter solstice in the Northern Hemisphere, with shorter days and longer nights. Lastly, the figure at 40°S in June receives the least amount of daylight as it is located at a lower latitude during the winter solstice in the Southern Hemisphere, where the days are shortest and the nights are longest. Based on the information given, the ranking of figures based on the amount of daylight they experience in a 24-hour period, from most to least.
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A softball hit by a bat accelerates at 2729 m/s2. If the net force acting on the softball is 508 N, what is the softball's mass?
Round your answer to the nearest 0.001. Do not add units.
Answers
0.186 g is the softball's mass when A softball hit by a bat accelerates at 2729 m/s2.
net force= 508 N,
acceleration=2729 m/s2
softball's mass?
Force=ma
m = force/acceleration
m= 508/2729
m=0.186 g
Mass is one of the fundamental quantities in physics and the most fundamental property of matter. The quantity of matter in a body is referred to as its mass. The SI unit of mass is the kilogram.
The mass of a body is constant at all times. only when a body receives or loses a considerable amount of energy, which happens seldom. For instance, a nuclear reaction causes the mass of the material to decrease because a very little amount of matter is converted into a very high amount of energy.
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A vehicle, starting from rest, accelerates on a circular track with a 335m diameter.
Answers
The distance travelled by the vehicle around the circular track is 1,052.4 m.
What is the distance travelled by the vehicle in one complete cycle?
The distance travelled by the vehicle in one complete cycle is calculated by using the following equation as show below.
d = 2πr
d = πd
Where;
r is the radius of the circular trackd is the diameter of the circular trackIn one complete cycle, the vehicle will travel the circular track only once.
d = π(335 m)
d = 1,052.4 m
Thus, the distance travelled by the vehicle around the circular track is a function of the diameter of the circular track.
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The complete question is below:
A vehicle, starting from rest, accelerates on a circular track with a 335m diameter. What is the distance travelled by the vehicle when it makes one complete cycle?
HELLPPPP PLZZZ
10. Identify Which gas law
does this graph represent.
