Two planets in space gravitationally attract each other. if both the masses and distances are doubled, the force between them is

Two asteroids are 50,000 m apart. one has a mass of 5 x 10^8 kg. If the force of gravity between them is 8.67 x 10 ^ - 2 N, what is the mass of the other asteroid?

A test charge is placed at a distance of 3.5 meters from a charge of 8.7 x 109 coulombs. What is the electric field strength at the test charge? (k 9.0 x 109 newton-meter2/coulomb)

A girl rides her bike with an average velocity of 15.2 km/h northward. If it takes her 25 min to ride to her friend's house, what is her displacement?

How can pyroclastic clouds and lahars affect the environment?

a body whose mass is 40kg runs up a flight of 30steps, each 150mm high in 6 seconds. Find the average power developed

How to get to the daley center from pink line?

nitially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discovered. How did the scientific world respond to this new information?

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

An engineer wants to set up simple password protection with no usernames for some switches in a lab, for the purpose of keeping curious co-workers from logging into the lab switches from their desktop PCs.

How are frequency and wave period related?