Using the formula for gravity, find the force of gravity on a 0.80-kg mass at Earth's surface. (The mass of Earth is 6×10^24kg, and its radius is 6.4×10^6m.).

Answer 1

F = G * (m₁ m₂) / r²

F = 6.7E-11 * 4.8E24 / (6.4E6)² N

Answer 2

Using the formula for gravity, find the force of gravity on a 0.80-kg mass at Earth's surface. (The mass of Earth is 6×1024kg, and its radius is 6.4×106m.).
Express your answer to two significant figures and include the appropriate units.