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zheka24 [161]
3 years ago
12

What is one factor that helps keep the planets and other solar system objects in orbit around the sun?

Physics
2 answers:
pshichka [43]3 years ago
7 0
The answer is D<span>.the gravitational force between the sun and each object in the solar system</span>
zhuklara [117]3 years ago
3 0
D the sun`s gravitational force and the planet`s gravitational force keeps us in our spots
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A book falls of the table and hits the floor. Is work done? Why?​
morpeh [17]

<u>Yes, work is done when a book falls of the table.</u>

This is because:

When the book falls, it's potential energy is converted into kinetic energy.   As it reaches the floor down, this kinetic energy is converted to heat energy and sound energy due to the impact.

When a force is imposed on an object to cause displacement of that object, work is done on that object. For a force to do work on an object, there should be a displacement and this force should cause the displacement. So here, since the book falls from the table and causes the displacement of the book from the table to the floor. It is said that work is done.

Work can be given by the formula:

W = F • d

where F is the force and d is the displacement.

6 0
2 years ago
Read 2 more answers
Suppose we repeat the experiment from the video, but this time we use a rocket three times as massive as the one in the video, a
shusha [124]

Answer:

2/3

Explanation:

In the case shown above, the result 2/3 is directly related to the fact that the speed of the rocket is proportional to the ratio between the mass of the fluid and the mass of the rocket.

In the case shown in the question above, the momentum will happen due to the influence of the fluid that is in the rocket, which is proportional to the mass and speed of the same rocket. If we consider the constant speed, this will result in an increase in the momentum of the fluid. Based on this and considering that rocket and fluid has momentum in opposite directions we can make the following calculation:

Rocket speed = rocket momentum / rocket mass.

As we saw in the question above, the mass of the rocket is three times greater than that of the rocket in the video. For this reason, we can conclude that the calculation should be done with the rocket in its initial state and another calculation with its final state:

Initial state: Speed ​​= rocket momentum / rocket mass.

Final state: Speed ​​= 2 rocket momentum / 3 rocket mass. -------------> 2/3

8 0
2 years ago
70 POINTS AND BRAINLIEST PLEASE HELP!!!The Moon orbits Earth. This orbit causes the Moon to look different over the course of ab
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Answer:

It always acurs after a 1st quarter

do you have photo?

Explanation:

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3 years ago
Define rotational speed?- short answer
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Rotational speed of an object around an axis is the numbers of turns of the object divided by time.  <span />
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3 years ago
PLEASE HELP/// <br> how many Croatian Music Awards has 2cello won
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I think 3 but I’m not sure I don’t even know who they are
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