2. a. A crane at a metal scrap recycling center can pick up metal cars using a giant magnet. Select the type of force that allows the crane to pick up the metal car. A. Normal Force B. Friction C. Electromagnetic Force D. Applied force b. EXPLAIN your answer for 2a - Describe how this FORCE would be demonstrated in the scenario. ​

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?