Aman has a weight of 100 newtons. how much work is done if he climbs 4meters up a ladder?

400 J

Explanation:

Work is done when a force that is applied to an object moves that object.

The work is calculated by multiplying the force by the amount of movement of an object

W = F * d

here the man has to work against the gravitational field. (against his weight)

F =100 N

Work done =  F * d

                   =   100 * 4

                   = 400 J

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2