Determine the force of gravitational attraction between the Earth (5.98x1024 kg) and a 75 kg physics student if the student is standing at sea level, a distance of 6.45x106 meters from Earth's center.

What are the factors that affect the resistance of a wire?

What’s #16 asking me and how do i solve it?

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.