Which vector below represents the direction of the force vector when the object is located at point c on the circle?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

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.

Does current flow through or across a resistor?