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.

Answer form flower;

The answer is n = 2  and    n = 3

In the conservation of mass, mass (which is the same as energy) can never be created or destroyed in the same way oil is formed from the remains of small animals and plants that died and fell to the bottom of the sea and their mass (energy) is conserved as oil.

Current supplied to consumers from generating plants like coal power plant, nuclear power plant, geothermal and others are in form of alternating current instead of direct current because it can be transported easily in a long distance. also, the alternating current has a wide range of frequency and the amount or energy can be increased or decreased.