A rock at rest falls off a tall cliff. what is the rock's velocity as the rock hits the ground 3.5 s later? ignore air resistance

Which is true of a kilogram of feathers and a kilogram of bricks? a. they have the same mass b. they have the same volume c. the bricks are less dense d. the feathers are more dense

In addition to their remarkable top speeds of almost 60 mph, cheetahs have impressive cornering abilities. In one study, the maximum centripetal acceleration of a cheetah was measured to be 17 m/s2.

When an atoms blank become blank, the atom becomes blank

Jose wandered 4 kilometers at 2 kilometers per hour. How long did Jose wonder?

how much energy is required to move a 4.00-microcoulomb charge through a potential difference of 36.0 volts?

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.

Your friend states in a report that the average time required to circle a 1.0-mi track was 49.325 s. This was measured by timing 10 laps using a stopwatch with a precision of 0.01 s. Do you believe his results are reliable? Explain.

The forklift exerts a 300.0 N force on the box and moves it 15.0 m into the air. How much work does the forklift do? A. 500 J B. 1.50 * 10^3 J C. 4.50 * 10^3 J D. 0.00 J

Why the room gets hot even we open the door of refrigerator?