As a substance changes phase from solid to liquid to gas, the molecules become closer together.

Why do we use a spaceship in outer space, far from other objects, to illustrate the principle that an object that does not interact with anything travels at constant speed in a straight line (Newton's first law) ? Why not a car or a train?

If we decrease the amount of force, and keep all other factors the same, what will happen to the amount of work? The amount of work will go down because the distance will decrease. The amount of work will go up because the distance will decrease.

Analyze how some insects are able to move around on the surface of a lake or pond

The 'hubble constant, h0' is used to determine

Se um veiculo passa sua velocidade de 2m/s para 12 m/s em 2 segundos

When the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isJ.

How do most primary producers make their own food?

The maximum kinetic energy of photoelectrons is 3.10 ev. when the wavelength of the light is increased by 50%, the maximum energy decreases to 1.50 ev. part a what is the work function of the cathode?

Which of the following most completely describes an objects motion? A. a car travels 25 miles. B. The baby crawls 10 feet in 15 seconds toward the door. C. A marble rolls 10 m to the left D. The rain falls at a rate of one inch per hour

Why is the use of carbon-14 limited