What atmospheric constituent is responsible for the blue color of uranus and neptune?

a. Hydrogen

b. Water

c. Ammonia

d. Methane

A rocket blast off and moves away from the earth. How is the rocket affected by the earth's gravitational pull as it gets further away? A. The pull of gravity on the rocket reverses. B. The pull of gravity on the rocket increases. C.

A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it hits the ground?

Two tubes and two other what total for this

Why is Hubble's law better than using trigonometric parallax?

A) An electron is moving with a speed of 3.5 x105 m/s when it encounters a magnetic field of 0.60T. The direction of the magnetic field makes an angle of60.0° with respect to the velocity of the electron.

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor

Let's now apply our equations for the normal modes of open and closed pipes. On a day when the speed of sound is 345 m/s, the fundamental frequency of an open organ pipe is 690 Hz.

Suppose you are an observer standing on the Moon, looking back at Earth. If the moon is in the waxingquarter phase, what phase of the Earth would you see? A. waxing quarter B. full C. new D. waning quarter E. none; the Earth doesn't have phases

How many chromosomes will an elephant's sperm have?