Your drop a coin from the top of a hundred-story building(1000m). if you ignore air resistance, how fast will it be falling right before it hits the ground? how long does it take to hit the ground?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?