Aball of mass 0.5kg is released form rest at a height of 30m. how fast is it going when it hits the ground? acceleration due to gravity is g-9.8m/s^2

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

This is the substance(s) formed in a chemical reaction.

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.