A football punter kicks a ball from 0.50 m high with an initial velocity of 25 m/s at an angle of 72° to the horizontal. What are the maximum height and time of flight for the ball? Assume the ball lands on the ground.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

moisture is lackin, and organic acids are scarce.