Which is not a primary color of light?

a) green

b) blue

c) yellow

d) red

In elastic collisions, total kinetic energy and momentum are both conserved. On a frictionless track, cart 1 is moving with a constant, rightward (+) velocity of 1.0m/s. Cart 2 is also moving rightward with constant velocity of 5.0m/s.

The cell membrane allows gas and nutrients to enter in the cell. this is called

The mass of Jupiter is 1.9 * 1027 and that of the sun is 1.99 * 1030. The mean distance of Jupiter from the sun is 7.8 * 1011m. Calculate the gravitational force which the sun exerts on Jupiter, and the speed of Jupiter.

For two traveling waves, if the crest of one wave coincides with a trough of another, what type of interference occurs?

Why is momentum considered a vector quantity?

The average distance to the stars that make up the constellations in the night sky around the sun is about

What happen when a light from the sun passes through any type of matter

A projectile is launched at ground level with an initial speed of 53.0 m/s at an angle of 35.0° above the horizontal. It strikes a target above the ground 2.50 seconds later.

A 2650-lb car is traveling at sea level at a constant speed. its engine is running at 4500 rev/min and is producing 175 ft-lb of torque.

How many valence electrons are in alkali metals