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3 years ago

A heavy planet and a light planet are found to have the same momentum.

Physics

1 answer:

Licemer1 [7]3 years ago

6 0

•The light planet is faster,

Explanation:

Since we have two planets whose momentum have been found to be the same, and we know that one has a higher mass than the other, then the light planet can be said to be faster moving.

This way, the momentum of the light planet can measure up.

Momentum is the product of mass and velocity of a body.

Momentum = mass x velocity

If a body is heavier than another, it will have more mass than it.

To compensate for the momentum, the lighter body must have a higher velocity.

This way, their momentum will be the same.

learn more:

Momentum brainly.com/question/2990238

#learnwithBrainly

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What is the direction of propagation of the wave if E⃗ =Ei^,B⃗ =−Bj^. Express the direction of the propagation vector, P⃗ , as a

nataly862011 [7]

Answer with Explanation:

We are given that

Electric field vector= $\vec{E}=E\hat{i}$

Magnetic field vector= $\vec{B}=-B\hat{j}$

We have to find the direction of propagation of the wave.

We know that

The direction of propagation of wave= $\vec{E}\times \vec{B}$

The direction of propagation of wave= $\hat{i}\times (-\hat{j})=-\hat{k}$

Because ( $\hat{i}\times \hat{j}=\hat{k}$ )

The wave propagate in -z direction.

Therefore, the component of the vector is (0,0,-1).

Hence, the direction of the propagation of wave is - z direction and component of direction of propagation vector is (0,0,-1).

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4 years ago

At a waterpark, sleds with riders are sent along a slippery, horizontal surface by the release of a large, compressed spring. Th

steposvetlana [31]

The sleds speed when the spring returns toits uncompressed length is v = 0.03 m/s.

<u>Explanation</u>:

Given,

force constant = 42 N/cm = 0.42 N/m, mass m = 68 kg, spring x = 0.39 m

The potential energy, U, stored in the spring is

U = 1/2 kx^2

= 1 / 2 $\times$ 0.42 $\times$ (0.39)^2

= 0.032 J

All its potential energy has been converted into kinetic energy since it has a uncompressed length.

K = 1/2 mv^2

v = sqrt (2K / m)

= √(( 2 $\times$ 0.032) / 68)

v = 0.03 m/s .

4 0

4 years ago

The shortest wavelengths that we can see are experienced as

max2010maxim [7]

The shortest wavelengths that you can see are experienced
as violet light, or whatever is the last color you can see on the
"blue end" of the spectrum. It's not exactly the same for all eyes.

4 0

4 years ago

An equation for the motion of an object is given as 2vt-4x=Bt^2 where B is a constant. The variable v indicates velocity, in met

Jlenok [28]

Answer:

acceleration m/s²

Explanation:

The units on the left side of the equation are units of length. The units on the right side of the equation must be units of length also. Acceleration times time squared gives length.

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4 years ago

Read 2 more answers

If gravity did not affect the pain of a horizontally thrown ball the ball would

Drupady [299]

If gravity had no effect on a ball after you threw it ... and there also
were no air to slow it down ... then the ball would continue traveling
in a straight line, in whatever direction you threw it.

That's the heart and soul of Newton's laws of motion ... any object
keeps moving at the same speed, and in a straight line in the same
direction, until a force acts on it to change its speed or direction.\

If you threw the ball horizontally, then it would keep moving in the
same direction you threw it. But don't forget: The Earth is not flat.
The Earth is a sphere. So, as the ball kept going farther and farther
in the same straight line, the Earth would curve away from it, and it
would look like the ball is getting farther and farther from the ground.

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3 years ago

Read 2 more answers