Apitcher throws a baseball straight up, with an initial speed of 25 m/s. (a) how long does it take to reach the highest point? (b) how high does the ball rise above its release point? (c) how long will it take for the ball to reach a point 25 m above its release point?

Act has a 1200: 5 or 240: 1 turns ratio. it is short circuited. what is the maximum current at 1200a primary if we put a 100ohm resistor across the secondary end of the ct. use it as current source circuit.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.