Which objects play the roles of the sun earth and moon

Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a wrench from 3.00 m above the ground and measure that it hits the ground 0.

When cooling down soup what is the time and temperature specification

Explain how average speed and average velocity are related to each other for an object in uniform motion

If you jump into the air, are your legs pushing you away from the earth or pushing the earth away from you?

Two objects, a and b, are held one meter above the horizontal ground. the mass of b is twice as great as the mass of a.

Which statement describes potential energy?

A joule is equivalent to N/s N/m Ndm Nds

What makes up your nervous system?

How is the modern model of an atom different from the bohr atomic model?

A driver in a car traveling at a speed of 21.8 m/s sees a cat 101m away on the road. How long will it take for the car to accelerate uniformly for 3.2 km in 3.5 min. How fast (in m/s) is the car moving after this time?