What is the study of the strength and orientation of earths magnetic field

Which could cause a satellite to descend low enough that it burns up in the Earths atmosphere? A. Centripetal force B. Air resistance C. Gravitational force

When a block with a hole in it is heated why does not the material around the hole expand into the hole and make it small

At a certain instant an object is moving to the right with speed 1.0 m/s and has a constant acceleration to the left of 1.0 m/s^2. at what later time will the object momentarily be at rest?

The earth pulls the moon towards it because of the earth has more mass and therefore moe

A disturbance that moves through space and time is called a ___.

If a girl makes a homemade sling shot that requires a force of 14 N to pull it's pebble (.08kg) into place at 0.1 m from the resting position of the sling shot, the maximum velocity of the pebble will be

A weightlifter raises a 200-kg barbell with an acceleration of 3 m/s^2. How much force does the weightlifter use to raise the barbell?

How does the law of inertia relate to how the planets in our solar system revolve around the sun?

Metals combine easily with nonmetals. true or false

If a bicyclist has a mass of 70 KG and a velocity of 25M/S, what is the momentum of the bicyclist?