How many moles of MgCl2 are there in 315 g of the compound? mol

The state in which a star's gravitational collapse is balanced between gravity pushing inward and gas pressure pushing outward is called

Why don't satellites in orbit fall to the ground? Why they don't fly off into space?

A 2 kg chunk of putty with mass of 2 kg is moving with a velocity of 1 m/s to the east. it collides and sticks to a bowling ball with mass of 5 kg initially at rest. the bowling ball and putty then move with a total momentum of

What is the value of (g) at north pole and at equator?

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain?

Why do stars appear to move through the night sky at the rate of 15 degrees per hour?

What is a Ramjet engine?

An airplane started at a distance of 20 km from Chicago and flew directly away from it. 10 minutes later, the airplane was 55 km from Chicago. If dis the distance of the airplane from Chicago, what is Ad? A. 10 km B. 55 km C. 35 km D. 20 km

An alpha particle travels at a velocity of magnitude 550 m/s through a uniform magnetic field of magnitude 0.045T. (An alpha particle has a charge of charge of + 3.2 x 10-19 C and a mass 6.

A woman tries to put lipstick in the car. She has to come to a fast stop, and the lipstick falls to the floor and rolls forward, under the brake pedal. She dies. Why does this happen?