B. hammer Which simple machine is used on a f
a. wedge
b. pulley
C.
A hand truck is used in stores to mo
arts of a hand truck?
a. inclined plane and wheel
c) pulley and lever
d.
Which could help a person in a whe​

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

What is special about a dc circuit ?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.