An alternating voltage of 25.0 V is connected across the primary coil of a transformer. Input Voltage 25 V
ind Output Voltage
50 V Output Current
Input Current 5 A
What is the current across the secondary coil? A 2.5 A C 250 A B D 5.0 A 500 A​

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.