Which of the following remains constant during the motion of a projectile fired from a planet? A. Momentum

B. Kinetic energy

C. Horizontal component of velocity

D. Vertical component of velocity

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge

Agust of wind pushes a beach ball with a force of 9 newtons. the ball rolls 10 meters in 3 seconds. what is the power of the wind?