The gravitational force between the sun (mass = 1.99 × 1030 kg) and mercury (mass = 3.30 × 1023 kg) is 8.99 × 1021 n. how far is mercury from the sun?

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.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths