On earth a rock is dropped and falls 4.9 meters just before it hits the ground. how much time did the rock take to fall this distance

Velocity vs time graph Time (sec) Displacement (m) Velocity (m/s) 0 0 0 0.5 1.25 5 1 5 10 1.5 11.25 15 How is the acceleration related to the time for the data table? A) The acceleration is a constant. B) The acceleration is constantly decreasing.

If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result? Total energy increases. Stored energy decreases. Energy of motion decreases. Total energy decreases Save and Exit

To determin the density of an empty plastic jug what would you measure

You whirl a stone in a horizontal circle in such a way that the stone is in uniform circular motion. Which of the following is true for this situation? A. The magnitude of the stone's velocity does not change. B.

The club was in contact with a ball, initially at rest, for about 0.0052 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.4 ✕ 102 ft/s, find the average force (in kN) exerted on the ball by the club.

You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before going to bed each night.

Work is a product of A force and distance B force and heat energy C cause and heat energy D cause and effect

An exploration submarine should be able to descend 1200 m down in the ocean. If the ocean density is 1020 kg/m3, what is the maximum pressure on the submarine hull?

Why cooking pans don't have have metal handles?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band