If a tank holds 5500 gallons of water, which drains from the bottom of tank in 40min, then Torricelli’s Laws gives the volume V of water remaining in the tank after t minutes as V=5500(1-1/50t)^(2)

Explain what happens at the saturation point when adding salt to water at room temperature.

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction