14. A 25.0 kg rock is lifted from the ground to a height of 10 m, in a time of 5.0 s. A) What is the force necessary to lift the rock? B) What is the amount of work done? C) What is power
performed?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg