HELP ASAP TIMED TEST An ball with a mass of M is launched off of a building of height h at an angle of Θ. The highest point in the ball's trajectory is Point P and Point Q is level with the launch height. Ignoring all effects of air resistance, what would the total mechanical energy be equal to at Point Q for the ball-Earth system?

a
1/2Mvoy2 + 1/2Mvox2

b
Mgh + 1/2Mvo2

c
Mgh
d
1/2Mvox2

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?

The applied force of 3 washers will increase the applied force on the car to n.