if on earth's surface the force of gravity of an oject is 800n how much force of gravity will the same object have at 12740 distance from the center of earth?

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest