6. Two toy blocks are made of the same material. One has a mass of 20 grams and its dimensions are 2 cm x 4 cm x 1 cm. The second block measures 4 cm x 3 cm x 2 cm. Calculate the mass of the second
block.

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above