Two horizontal forces 25n and 12n and another force f inclined at 60° to the vertical
.if the body is at equilibrium (at rest) calculate the weight of the body

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:

nah.   i'm just sleepy.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000