Car A and Car B are driving towards each other. Car A's speedometer shows that it is going 60 mph. Car B's speedometer shows that it is going 70 mph. How fast is Car A going relative to a passenger in Car B?

when light passes through an ordinary window pane, its angle of emergence is the same as its angle of incidence light refracts when traveling from air into glass because light travels slower in glass then in air

Light speeds up and changes direction when it passes through water or glass at an angle and enters the atmosphere. Turning away from the usual line, the light. Imagine a tractor transitioning from a slow-moving, muddy, grassy area to a quick-moving road.

Light refracts while passing from air into glass because light travels more slowly in glass than it does in air. When light passes through a typical window pane, its angle of emergence and angle of incidence are the same.

When light travels from the less dense air into the denser glass or water, what actually happens is that it slows down. The light ray also changes direction as a result of this slowing down. Refraction is brought on by a change in the speed of the light.

Therefore, When light rays bounce off a surface, transition from one transparent medium to another, or proceed through a medium whose composition is constantly changing, they change direction.

Learn more about window pane here:

https://brainly.com/question/17113707

#SPJ12

Answer:

1.92 kg of nitrogen.

Explanation:

The following data were obtained from the question:

Heat absorbed (Q) = 384000 J

Note: Heat of vaporisation (ΔHv) of nitrogen = 5600 J/mol

Next, we shall determine the number of mole of nitrogen that absorbed 384000 J.

This is illustrated below:

Q = mol·ΔHv

384000 = mole of N2 x 5600

Divide both side by 5600

Mole of N2 = 384000/5600

Mole of N2 = 68.57 moles

Next, we shall convert 68.57 moles of nitrogen, N2 to grams.

This can be obtained as follow:

Molar mass of N2 = 2 x 14 = 28 g/mol.

Mole of N2 = 68.57 moles.

Mass of N2 =..?

Mole = mass /molar mass

68.57 = mass of N2 /28

Cross multiply

Mass of N2 = 68.57 x 28

Mass of N2 = 1919.96 g

Finally, we shall convert 1919.96 g to kilograms.

This can be achieved as shown below:

1000g = 1 kg

Therefore,

1919.96 g = 1919.96/1000 = 1.92 kg.

Therefore, 1.92 kg of nitrogen were burned off.

Answer:

Explanation:

i cheat on Acellus cause I dont care about school. If i did I would be going to public school... Im never gonna use this info in my life so I dont bother learning it.

The magnitude of this vector is 9.43 and the direction angle of the vector is 58°.

The initial point and the terminal point of the vectors are (3 - 5) and (-2, 3) respectively.

The characteristics of the vector mainly includes the magnitude and the direction of the angle of the vector.

The magnitude of this vector will be given by,

M = √((-2-3)²+(3+5)²)

M = √(25+64)

M = √89

M = 9.43

The direction angle of this vector with the x-axis will be given by,

Tan A = (8/-5)

Tan A = -1.6

A = 58°.

The direction angle of this vector is 58 degree.

To know more about Vector, visit,

https://brainly.com/question/25705666

#SPJ4

Answer: D. The magnitude is StartRoot 89 EndRoot, and the direction angle is about 122°.

Explanation:

A moving thing has a tougher time stopping the more momentum it possesses. Because of this, stopping such an item would need more force or more time.

The force changes the object's velocity over the course of a specific period of time, which changes the object's momentum.

During a collision, an object is subjected to a force for a predetermined period of time, which causes a change in momentum. The mass of the item either accelerates or decelerates as a result of the force applied for the predetermined length of time. The object's change in momentum is equal to the impulse it experiences. The formula is F • t = m • v.

To know more about force click here:

brainly.com/question/26115859

#SPJ4

when giving a rescue breath, you should blow in for about 1 second and make the chest clearly rise (option-b).

Give two rescue breaths for each round of 30 chest compressions. Gently tilt the person's head, then with two fingers, raise the chin. Grab the individual by the nose. You should place your mouth over theirs and blow into their mouth for about a second while being steady and forceful.

emergency breathing The head-tilt, chin-lift technique should be used to open the airway. To create a seal, cover the person's mouth with yours and pinch their noses shut so they can breathe through their mouths. First, rescue the victim with a one-second breath, and then check to see whether the chest rises.

To know more about rescue breath visit:

https://brainly.com/question/9079912

#SPJ4

For every 5.00 m the box moves along the ramp, the pushing force does 583 J of work.

To solve this problem, we need to use the formula for work done, which is given by W = Fd, where W is the work done, F is the force applied, and d is the distance covered.
In this case, the force applied is constant and has a magnitude of 100 N. The distance covered along the ramp for each 5.00 m is given by the hypotenuse of a right-angled triangle, with one side being 5.00 m and the other side being 3.00 m (the height gained by the box). Using Pythagoras theorem, we can find that the distance covered is 5.83 m.
Therefore, the work done by the pushing force for each 5.00 m the box moves along the ramp is given by W = 100 N x 5.83 m = 583 J (Joules). This means that for every 5.00 m the box moves along the ramp, the pushing force does 583 J of work.
It is important to note that the work done by the pushing force is equal to the increase in potential energy of the box as it gains height along the ramp. This is because work done is the product of force and distance, and in this case, the force is perpendicular to the displacement of the box, so no work is done in the horizontal direction. Therefore, all the work done goes towards increasing the potential energy of the box.

To know more about work done visit:
https://brainly.com/question/3902440
#SPJ11

Answer:

Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects. so the answer is thermal energy

When two materials that are in contact have the same temperature, the materials are said to be in thermal equilibrium.

Thermal equilibrium is a state in which there is no net flow of heat between two objects in contact. In this state, the temperature of the objects does not change over time, as there is no temperature gradient between them. This is a fundamental principle of thermodynamics, and it is the basis for the design and operation of many thermal systems.

The concept of thermal equilibrium is also important in fields such as materials science, engineering, and physics, where it is used to describe the behavior of materials and their interactions with the environment.

To know more about temperature, here

brainly.com/question/15094067

#SPJ4

--The complete question is, When two materials that are in contact have the same temperature, the materials are said to be in ______.--

The metal can be identified by comparing its specific heat capacity to known values. By calculating the heat gained by the mercury and equating it to the heat lost by the metal sphere, the specific heat capacity of the metal can be determined. Comparing the calculated value of approximately 0.033 J/g·°C to known values allows for the identification of the metal.

To identify the metal, we can use the principle of heat transfer and the specific heat capacities of the materials involved.

First, we need to calculate the heat gained by the mercury in the beaker. The equation for heat transfer is given by:

Q = mcΔT

Where Q is the heat gained, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.

For the mercury, with a mass of 300 \(cm^3\) (which is equivalent to 300 g since the density of mercury is approximately 1 g/\(cm^3\)), a specific heat capacity of 0.14 J/g·°C, and a temperature change of 99.0 - 20.0 = 79.0 °C, we can calculate the heat gained by the mercury:

Q_mercury = (300 g) * (0.14 J/g·°C) * (79.0 °C) = 3322 J

Since the heat lost by the metal sphere is equal to the heat gained by the mercury, we can set up the equation:

Q_metal = Q_mercury

The heat lost by the metal sphere can be calculated using the equation:

Q_metal = mcΔT

Where m is the mass of the metal sphere (500 g), c is the specific heat capacity of the metal, and ΔT is the change in temperature (300 °C - 99 °C = 201 °C).

Plugging in the values, we get:

(500 g) * c * (201 °C) = 3322 J

Solving for c, the specific heat capacity of the metal:

c = 3322 J / (500 g * 201 °C)

c ≈ 0.033 J/g·°C

By comparing this specific heat capacity to known values, we can identify the metal. Each metal has a unique specific heat capacity, so we would need to consult a reference table or database to find the metal that closely matches the calculated specific heat capacity of approximately 0.033 J/g·°C.

To know more about heat capacity refer to-

https://brainly.com/question/28302909

#SPJ11

The correct answer is Smaller than that of star B.

The parallax angle of a star is inversely proportional to its distance from Earth. Therefore, if star A is closer to us than star B, star A's parallax angle will be smaller than that of star B. The parallax angle is a measure of the apparent shift of a star's position when viewed from different vantage points on Earth's orbit.

Parallax is used to determine the distance to nearby stars. By measuring the parallax angle of a star, astronomers can calculate its distance using trigonometric principles. The smaller the parallax angle, the greater the distance to the star.

In the context of the question, since star A is closer to us than star B, it means that star A is at a shorter distance from Earth. Consequently, its parallax angle will be smaller compared to the parallax angle of star B, which indicates that star A is farther away from us than star B.

Learn more about Parallax angle here: https://brainly.com/question/20296211

#SPJ11

Answer: B

Explanation:

Answer:

fitness is very important to me

0.1M HCl will have a lower pH (be more acidic) than 0.1M H2SO4.

The pH of a solution is determined by the concentration of hydrogen ions (H+). In the case of hydrochloric acid (HCl) and sulfuric acid (H2SO4), both are strong acids that dissociate completely in water. However, sulfuric acid (H2SO4) dissociates into two H+ ions per molecule, while hydrochloric acid (HCl) dissociates into only one H+ ion per molecule.

Therefore, for the same concentration (0.1M), H2SO4 will produce twice as many H+ ions as HCl, resulting in a higher concentration of H+ ions and a lower pH. Hence, 0.1M HCl will have a lower pH and be more acidic than 0.1M H2SO4.

To know more about acidic,  refer here:

https://brainly.com/question/29796621#

#SPJ11

Answer:

30

Explanation:

30

the total length of the spring in centimeters when it is stretched to the point where 2.8 joules are stored in it is 30.

length can be defined as the measurement which is an act for the identification of the object's length in some standard or non-standard units.

The most common units of length  are U.S. customary units and the metric units  include SI and non-SI units, others are  British Imperial units are also still used in some countries.

Other units of length include kilometres, nanometre, millimetres, centimetres, metres, decimetres  where as the Imperial and U.S. customary systems, basic unit of length is the yard.

other units are thou (1⁄1000 of an inch), line (1⁄12 of an inch), inch (25.4 mm), foot (12 inches, 0.3048 m)

For more details length,  visit

brainly.com/question/27889992

#SPJ2

Mars is the planetary body that has bedrock, reddish dust, and ice caps. This information comes from sources such as NASA, James Bon Cornell University, Michael Wolff (Space Science Institute), and the Hubble Heritage Team (STSCVAURA).

Mars, the fourth planet from the Sun in our solar system, is characterized by its reddish appearance due to the iron oxide (or rust) present in its soil and dust. The bedrock on Mars is made up of various types of rocks, such as basaltic rocks and sedimentary rocks, which have been shaped by geological processes over time. In addition to the bedrock and reddish dust, Mars is also known for its ice caps, which are primarily composed of water ice with some frozen carbon dioxide. These ice caps are located at the planet's north and south poles and provide valuable information about Mars' climate history and potential for future human exploration.

To know more about the Mars, click here;

https://brainly.com/question/29186894

#SPJ11

The electronic transition responsible for the Pfund series of the hydrogen spectrum, with its longest wavelength component at 7400 nm, involves an electron moving from an excited state to the fifth energy level (n = 5) in the hydrogen atom.

The Pfund series is a set of spectral lines in the hydrogen spectrum that corresponds to electronic transitions where the electron jumps from higher energy levels to the fifth energy level (n = 5). The longest wavelength component of this series occurs when the electron transitions from the excited state (n > 5) to the fifth energy level.

In the hydrogen atom, electrons occupy discrete energy levels around the nucleus. When an electron gains energy, it moves to a higher energy level. The transition that produces the Pfund series involves an electron moving from an excited state (n > 5) to the fifth energy level (n = 5). As the electron undergoes this transition, it releases energy in the form of electromagnetic radiation. The longest wavelength component in the Pfund series corresponds to the transition with the least energy difference, resulting in a longer wavelength.

Understanding the electronic transitions in the hydrogen spectrum helps us study the behavior of atoms and provides valuable insights into quantum mechanics and the structure of matter.

Learn more about Electronic transition

brainly.com/question/12950701

#SPJ11.

The total amount of energy radiated by the accretion disk during the history of the black hole is approximately  6.44 x 10^53 Joules. The average luminosity of the accretion disk  is approximately 2.04 x 10^37 Watts.

The average luminosity of the accretion disk is slightly lower than the luminosity of the Milky Way.

To determine the total amount of energy radiated by the accretion disk during the history of the black hole, we can use the mass-energy equivalence formula, E=mc^2, where E is the energy, m is the mass, and c is the speed of light (approx. 3x10^8 m/s).

First, we find 10% of the black hole's mass: 0.1 x 36 million solar masses = 3.6 million solar masses. Then, we convert this mass to kilograms: 3.6 million solar masses x (1.989 x 10^30 kg/solar mass) ≈ 7.16 x 10^36 kg.

Next, we calculate the energy: E = (7.16 x 10^36 kg) x (3 x 10^8 m/s)^2 ≈ 6.44 x 10^53 Joules.
To find the average luminosity of the accretion disk, we divide the total energy by the time it radiated that energy: 6.44 x 10^53 Joules / (10 billion years x 3.1536 x 10^7 s/year) ≈ 2.04 x 10^37 Watts.

Comparing the average luminosity of the accretion disk to the luminosity of the Milky Way, which is around 3 x 10^37 Watts, we see that the average luminosity of the accretion disk is slightly lower than the luminosity of the Milky Way.

For more such questions on luminosity, click on:

https://brainly.com/question/6933301

#SPJ11

Explanation:

hope this helps you

.....,.......

Answer:

The expectation that a larger object will feel heavy is presumably caused by the fact that larger objects generally contain more material and consequently have a larger mass than smaller objects. When, in contrast, the two objects have the same mass, an illusory heaviness difference occurs.

Explanation:

sorry if this is wrong

Answer:

2

1

2

1

3

1

Explanation:

I'm pretty sure these are right. you might want to go back and check the first and third, but the other 4 are right

The greater mass will have greater acceleration is a fact from second law of motion. Thus, first situation is an example of second law. Spilling of water from the glass indicates the first law , that is law of inertia.

Newton' s first law of motion states that, every body tends to continue on the state of motion or rest until an external force acts upon it. This law is called law of inertia.

Second law states that the force applied on a body is directly proportional to the mass and acceleration.

Newton's third law states that, for every action there is an equal and opposite reaction. The first statement indicates the second law of motion and water spilling indicates the law of inertia.

As the mass increases, more force to be applied and acceleration decreases with mass. Thus third situation indicates second law. The magician pulling the cloth from stationary, hence it is first law.

A rocket launches by a force applied on the space and an opposing force from the fuel make it move indicating the third law. The last situation indicates the first law. Hence, the labeling is as 2,1,2,1,3,1.

Find more on Newton's laws:

https://brainly.com/question/15280051

#SPJ2

280N(Newton) of force would it take to push another, larger friend who has a mass of 70g to accelerate at the same rate of 4 m/s².

A force is an influence that has the power to alter an object's motion. A force can cause an object with mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull.

A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). Force is denoted by the letter F.

Force = Mass * Acceleration

          = 70 g * 4

          = 280 Newton.

Therefore, 280N(Newton) of force would it take to push another, larger friend who has a mass of 70g to accelerate at the same rate of 4 m/s².

To learn more about Force, refer to the link:

https://brainly.com/question/13191643

#SPJ9

The minimum speed that must be given to the pail at the highest point of the circle if no water is to spill from it can be determined using the equation for centripetal acceleration.

Centripetal acceleration is given by the equation a = v²/r, where v is the speed, and r is the radius of the circle.

At the highest point of the circle, the centripetal acceleration must be equal to the acceleration due to gravity, g, in order for no water to spill from the pail.

Setting the two equations equal to each other and solving for v gives:

v²/r = g

v² = g*r

v = √(g*r)

Therefore, the minimum speed that must be given to the pail at the highest point of the circle if no water is to spill from it is √(g*r), where g is the acceleration due to gravity, and r is the radius of the circle.

To know more about centripetal acceleration, refer here:

https://brainly.com/question/14465119#

#SPJ11

Answer:

Sample Response: The data for the first part of the experiment support the first hypothesis. As the height of the cylinder increased, the temperature of the water increased. At a greater height, the cylinder has more gravitational potential energy. This gravitational potential energy was completely converted to thermal energy, which increased the temperature of the water.

Explanation:

this the sample response from ED mechanical equivalent of heat lab.

Answer:

Sample response:

Explanation:

The data for the first part of the experiment support the first hypothesis. As the height of the cylinder increased, the temperature of the water increased. At a greater height, the cylinder has more gravitational potential energy. This gravitational potential energy was completely converted to thermal energy, which increased the temperature of the water.

Image result for During a spring tide, the high tides are very high and the low tides are very low. Why does this occur?

In both cases, the gravitational pull of the sun is 'added' to the gravitational pull of the moon on Earth, causing the oceans to bulge a bit more than usual. This means that high tides are higher and low tides are lower than average. These are called 'spring tides. '

brainliest please?

Answer:

In both cases, the gravitational pull of the sun is 'added' to the gravitational pull of the moon on Earth, causing the oceans to bulge a bit more than usual. This means that high tides are higher and low tides are lower than average. These are called 'spring tides. '

Answer:

Independent Variable: Amount of salt

Dependent Variable: Number of plants

Explanation: As you change the amount of salt, the number of plants will also change.  So, we can build a relationship between amount of salt and number of plants as being amount of salt "independent" and number of plants "dependent". Hope it helps!!

The generator power will be 59 kW. Power drop is the main factor for finding the generated power.

The maximum power input allowed to pass through a piece of equipment is known as the equipment's power rating.

Power drop = 5%

The relation of the frequency change with the power drop is;

\(\rm \frac{df}{dp} =5\%\\\\ \frac{f_{rated-f_1}}{P_{rated}-P_1}=0.05\\\\ \frac{f_{rated-60}}{100-61}=0.05\\\\ f_{rated}=61.95\)

For the grid frequency, 59.9 Hz

\(\rm \frac{f_{rated-f_2}}{P_{rated}-P_2}=0.05\)

\(\rm \frac{61.95-f_2}}{100-P_2} =0.05\\\\ 100-P_2 =20(61.95-59.9)\\\\P_2=100-41 \\\\ P_2=59 \ kW\)

Hence, the generator power will be 59 kW.

To learn more about the power rating, refer to the link;

https://brainly.com/question/13787703

#SPJ1

Answer:

A. to eat a healthier meal

Explanation:

The answer would be A, to eat a healthier meal. Eating a serving of mixed greens can enable Ben to shed pounds in the event that it encourages you to diminish your aggregate calorie admission. Pick filling fixings with the goal that you are not as ravenous and eat less, and keep your plates of mixed greens low in calories so they give fewer calories than the feast or tidbit that they are supplanting.