The blank form acidic compounds with hydrogen.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

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 ?

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?