A 1.20-kg object (1) elastically collides with a 3.60-kg object (2) that is initially at rest. The less massive object has a speed of v1 = 4.00 m/s and travels at an angle of θ1 with its original direction after the collision; the more massive object has a speed of v2 = 1.20 m/s and travels at an angle of θ2 after the collision. What is the initial velocity of object 1?

What is the scattering angle of θ2?

What is the scattering angle of θ1?

Explanation is in the file

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explanation:

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: