the radius of planet is drecresing by 50%without changing its mass. the acceleration due to gravity will be?

What evidence suggests that the milky way contains dark matter?

Chloroplast are common to plant, but not animal cells. What is the primary function of chloroplasts?

Which of these are physical changes in matter? Check all that apply. boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

Which of the following will not be useful in trying to correct spherical aberration? a. using a diaphragm to block outside rays of light b. using a combination lens made up of lenses, each of which has a different index of refraction c.

A light-year is: the distance traveled by light in one year the distance from earth to the sun equal to 93,000,000 miles the time required for light to travel in one year

Which wave requires a medium for trasmission? a. Light b. Radio c. Infrared d. Sound

Which element is the primary fuel used to generate electricity using nuclear energy? coal hydrogen uranium helium

In which situations is elastic potential energy present? Check all that apply. A bow is drawn back from its equilibrium position. An arrow rests on a bow. A spring toy dart gun is unloaded. A spring toy dart gun is loaded with a dart.

A jogger runs at a speed of 3 m/s. How far does he run in 120 seconds?

An object of mass 10 kg is at rest when a net force of 20 N acts on it in a direction east. The acceleration produced on the object is? a) 2 m/s^2 in the direction east b) 2 m/s^2 in the direction west c) 0.5 m/s^2 in the direction east d) 0.