Projectiles that strike objects are good examples of inelastic collisions. a 0.1 kg nail driven by a gas powered nail driver collides in an inelastic collision with a 10 kg block of wood at rest. the total momentum of the system after the collision is 4.8 kg · m/s. round your answers to two significant digits. the velocity of the nail and block after the collision is calculated to be m/s. the expected velocity of the nail prior to the collision is m/s.

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: