Why is there a minimum mass required for an object to become a star?

Why can electromagnetic waves travel through a vacuum?

The gravitational force extend by a large, object, such as Earth is

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 26.3 m/s, it then flies a further distance of 48100 m and afterwards its velocity is 41.9 m/s.

When a fish is floating motionless below the surface of a lake, what is the amount and direction of the force the water is exerting on it?

Calculate the momentum for a 0:2 kg rifle bullet traveling 300m/a

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is pulled A. gravity pulls very hard on the milk carton. B. the milk carton has very little weight. C. the milk carton has inertia. D.

What is concave mirror

Two boxes are suspended from a rope over a pulley. each box has weight 50 n. what is the tension in the rope

What happens when you put a galvanized zinc nail in copper solution for an hour? Does is rust or turn different color? What is the outcome? What happens after an hour in vinegar?

Psuedopod in a sentence