Which kind of wave requires a medium for propagation?

a. radio

b. seismic

c. gamma ray

d. visible light

The similarity between intelligence scores of fraternal twins raised together is

A zebra starts from rest and accelerates at 1.9 m/s how far has a zebra gone in five seconds

A ball with a mass of 2.89 kg bounces off of the ground. Just before it hits the ground, its velocity is 6.00 m/s in the downward direction. Right after it bounces, its velocity is 4.54 m/s in the upward direction.

About how far does the Sun move on the Celestial Sphere each day? A. 1 degree B. 4 degrees C. 12 degrees D. 15 degrees E. 360 degrees

In 1998, scientists discovered that the expansion of the universe has been accelerating. What force is causing this phenomena?

A SI unit used to measure force, equal to less than one-quarter of a pound, is the what

What basic form of energy is present in blowing wind?

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

A soccer ball is sitting in the middle of a soccer field during a game. When the referee blows his whistle, one of the players runs toward the ball and kicks it as hard as he can.

A body with v=20m/s changes its speed to 28m/s in 2sec. its acceleration will be