The gravitational force between two objects of masses 10^24 and 10^27 is 6.67. calculate the distance [G=6.67*10^-11 Nm^-2 kg^-2]

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.

During the past 150 years in the united states, how did energy consumption compare to population growth

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency