An astronaut has a mass of 70 kilograms on earth. What her mass be on Mars? What would her weight be on Mars? The value of gravity (g) on Mars is 3.7 m/s squared

The resistance of a conductor is directly proportional to which of the following quantities? length, cross-sectional area, charge, potential

1. A (BLANK) change occurs when a material changes shape of size but the composition of the material does not change 2. (BLANK) properties can be observed only when the substances in a sample of matter are changing into different substances 3.

A force acting on an object does no work If

What is the most important factor affecting the movement of water in an ocean?

When gas or liquid particles become more spread out over time what is that called?

A book falls of the table and hits the floor. Is work done? Why?

A person of 83 kg is in an elevator. If the elevator is moving at a speed of 5 m/s, what's the person's kinetic energy? Keep 4 significant figures a 1,004 J b 1,038 c 1,280 J d 980 J e 1,435 J

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp