What muscles do you use to throw a ball

You drop a 6.0x10^-2 kg ball from height of 1.0m above hard flat surface. Ball strikes surface and energy decreases by 0.14J, then bounces upward. How much kinetic energy does the ball have just after it bounces off the flat surface?

Materials in which electric charges move freely such as copper and aluminum are called

Which best describes the relationship between the direction of energy and wave motion in a transverse wave? The energy direction is parallel to the motion of the wave. The energy direction is perpendicular to the motion of the wave.

Why are food and water the limiting factors that usually have the greatest effect on population size?

What is the name of the force that is a combination of all forces that act on an object?

What happens to the density as one progresses through the layers of the earth from the lithosphere toward the inner core

What is tiny holes on the surface of a plant?

How is aperture measured? What do the measurements mean?

The mass of the Sun is 1.99 * 1030 kg. Jupiter is 7.79 * 108 km away from the Sun and has a mass of 1.90 * 1027 kg. The gravitational force between the Sun and Jupiter to three significant figures is * 1023 N.

You measure the magnetic field of a long, current-carrying wire to be B is equal to start fraction 50 times mu naught over pi end fraction at a distance of r = 7.5 cm. How much current is running through the wire?