The mass of a star can be determined by studyinga. the wavelength of light emitted by the star.
b. the color of the star.
c. Kepler's laws.
d. binary star systems.

Answers

Answer 1

Answer: The correct answer for the question that is being presented above is this one: "a. the wavelength of light emitted by the star." The mass of a star can be determined by studying the wavelength of light emitted by the star. It also has something to do with the gravitational force that it exerts.

Answer 2

Answer:

Answer:

D. Binary Star Systems

Explanation:

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If you heat soup on a stove, what happens to the movement of the soup’s particles?The particles move slower.

The particles move faster.

There’s no change in the speed of particles.

The particles stop moving.

Answers

The particles of soup heat up more quickly on a burner. Option B is correct.

What is temperature?

Temperature directs to the hotness or coldness of a body. In clear terms, it is the method of finding the kinetic energy of particles within an entity. Faster the motion of particles more the temperature.

The amount of thermal energy or heat produced is directly correlated with the speed of the moving particles. As a result, the soup particle would travel more quickly as it heated.

Hence, option B is correct.

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We know, that thermal energy is directly proportional to kinetic energy which in turn, is directly proportional to velocity. So, as soup particle would get heated, it's particle move faster.

In short, Your Answer would be Option B

Hope this helps!

Gravity is greater when there is

Answers

when there is more mass and less distance between two objects

Gravity is greater when there is more mass and less distance between two given objects.

How much time is needed for a car to accelerate from 8.0 m/s to speed of 22 m/s if the acceleration is 3.0 m/s^2?

Answers

The time needed to accelerate the car from 8.0 m/s to a speed of 22 m/s will be 4.67 seconds.

What is acceleration?

Acceleration of any object is defined as the variation in the speed of the object with the variation of the time. Acceleration is a vector term and to define it we require both the magnitude and the direction. The unit of the acceleration can be m / sec², miles / sec², etc.

Given that, for a car to accelerate from 8.0 m/s to a speed of 22 m/s the required acceleration is 3.0 m/s²

The time to accelerate the car will be calculated as below:-

Acceleration = (final velocity - initial velocity)/ time taken

Time taken = (final velocity - initial velocity)/ acceleration

Time taken = (22-8)/3 = 4.67 seconds

Therefore, the time needed to accelerate the car from 8.0 m/s to a speed of 22 m/s will be 4.67 seconds.

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acceleration = (final velocity - initial velocity)/ time taken
so, time taken = (final velocity - initial velocity)/ acceleration
= (22-8)/3 = 4.67 seconds

Explain Newton's third law in your own words.

Answers

Newton's third law states "for every action, there is an equal and opposite reaction."

What this is pretty much saying is that for every action, there is a consequence. One force connects and triggers another.

Newton's third law says, " For every action, there is an equal and opposite reaction."

The magnitude of action and reaction are equal but the direction is opposite.

A fly buzzes past you at 6 m/s. The frequency of the buzz made by its wings is 162 Hz. Assume the speed of sound to be 334 m/s. What is the observed frequency of the hum as the bumblebee approaches you?

Answers

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

The observed frequency of the hum as the bumblebee approaches you is 165 Hz.

An apple falls to the ground due to: (A) frictional force. (B) muscular force. (C) gravitational force. (D) electrostatic force.