how does The electric force between charged objects change as the other objects move away from each other

A certain planet has an escape speed. If another planet has twice size and twice the mass of the first planet, its escape speed will be A) Sqrt[2] V B) V C) V/2 D) V/Sqrt[2] E) 2V

A custodial pushes a crate across the gym floor. What are the forces used

Which of the following statements about the planets is not true? a. Mercury has a greater eccentricity than Venus. b. Uranus has the smallest mass of the outer planets. c. Neptune has the shortest rotation period of any planet. d.

If a 70-kg swimmer pushed off a pool wall with a force of 250N at what rate will the swimmer accelerate from the wall

A body oscillates with simple harmonic motion along the x-axis. its displacement varies with time according to the equation a = a0 sin ω t + π 3, where ω = π radians per second, t is in seconds, and a0 = 9.9 m.

Two sounds are played for you. The first has a frequency of 196 Hz. The second has a frequency of 392 Hz. Which sound will be "higher" to your ear? A) The First B) The Second C) They will sound the same

When is an object that has been dropped from a great height through the air closest to vein in a free fall? At it's terminal velocity < - - this one?

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200-kg puck has a speed of 1.00 m/s at an angle of? = 52.0

Ariella drove 40 miles to see her cousin. The trip took Ariella 2 hours. Then drove from her cousins house to a store for 30 miles. It took Ariella to hours to Ariella to arrive at the store. What was the average speed of the trip

A meandering river is flowing in a broad, alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel. The government decides to build a dam across the valley for power and flood control.