Amass of 10 kg is at a point a on the table. it moved to a point b. if the line joining a and b is horizontal. what is the work done on the object by the gravitational force ? explain your answer

Work done by gravitational force = 0 joule

Explanation:

Work done is given by the relation

                        W  =  F   x    S   joule

Where,    F  -  the force applied in the form of push or pull

               S  -  displacement caused by the force

If a force is acting on a body and it doesn't cause any displacement, then work done will be zero.

Gravitational force acts on the body even if the body is at rest.

Work done by the gravitational is applicable only if there is some vertical component of motion involved.

In this case, some amount of work is done to move the body from point A to B.But, the body is displaced in the horizontal direction. No vertical motion is involved.

So, the work done due to gravitational force on a mass is zero joule.

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:

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.