Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Hi

Here is the equation for the momentum

                                              p = m x v

here m indicates mass and v indicates velocity.

Using words it can also be written as:

                                  Momentum = mass x velocity

Momentum of a body is basically the product of its mass and velocity.The standard unit of momentum is the kg x m/s, because the unit of mass is kilograms or kg and unit of veocity is metre per second or m/s, Therefore the product of both is the unit of momentum.

Hope it help!

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: