You learned about the force of gravity and that it is an attractive force. Gravity governs everything around us since anything that has mass also has gravity. In the space below, describe the relationship between gravitational force, mass, and
distance. Also answer if doubling mass or doubling distance would result in a greater increase in the gravitational force.

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false