Mechanical Energy: Note: For these problems we are ignoring air resistance and friction.
5. A 0.750 kg ball is dropped from rest at a point 0.80 m above the floor. There is no air resistance, and the floor is at zero potential energy. Find the mechanical energy at the
highest point, and the velocity of the ball when it reaches the floor.

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Which levels of government establish and implement educational requirements for minors

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal