The area of ​​the bottom of container A is 20 cm2 , of B 40 cm2 and C 80 cm2 . What is the force exerted on the bottom of each container due of hydrostatic pressure? At the bottom of which container is the greatest force exerted? Given δν = 1000kg / m3 and g = 10m / s2 .

When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final