587 kJ of work against gravity when it lifts a 6500 kg concrete from at a construction site. Calculate the height, in m, the form was lifted

The answer to your question is height = 9.20 m

Explanation:

Data

Work = 587 kJ

mass of the body = 6500 kg

height = ?

Mechanic work is defined as the force applied to a body times its mass.

Process

1.- Calculate the weight of the body

weight = mass x gravity (9.81)

weight = 6500 x 9.81

            = 63765 N

2.- Calculate the height

height = work / weight

-Substitution

height = 587 000 / 63765

-Result

height = 9.20 m

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: