Find the kinetic energy if mass of car 200 kg moving with velocty of 25 m/s

a spherical tank 4 m in diameter is 3/4 full of water. find the work required in pumping all the contents when the pump is placed on the top of the tank.

A fan must accelerate 2.5 m3 / s of air, from rest to 8 m / s. If the air density is 950 g / m3, a) Determine the minimum power that must be supplied to the fan and, b) Determine the diameter of the fan blades to provide the given volumetric flow with an average speed of 8 m / s.

A 1.0 kg block is pushed 1.0 m at a con- stant velocity up a vertical wall by a constant force applied at an angle of 30.0° with the horizontal, as shown in the figure. The acceleration of gravity is 9.81 m/s². 1 kg 1 m Drawing not to scale. If the coefficient of kinetic friction between the block and the wall is 0.30, find a) the work done by the force on the block. Answer in units of I Answer in units of J 30° part 2 of 3 b) the work done by gravity on the block. Answer in units of J. Answer in units of N part 3 of 3 c) the magnitude of the normal force be- tween the block and the wall. Answer in units of N.