Suppose that you lift four boxes individually, each at a constant velocity. The boxes have weights of 18 N, 6.0 N, 9.0 N, and 12 N, and you do 36 J of work on each. Match each box to the vertical distance through which it is lifted. 2.0 m

Explanation:

It is known that the relation between work and force is as follows.

              w =

where,     = angle between the applied force and direction of movement of the object which is zero in this case. As, cos (0) = 1.

Therefore,    d =

(i)   For w = 36 J, and F = 9 N then value of d will be as follows.

                    d =

                       =

                       = 4 m

(ii)  For w = 36 J, and F = 12 N then value of d will be as follows.

                    d =

                       =

                       = 3 m

(iii)  For w = 36 J, and F = 6 N then value of d will be as follows.

                    d =

                       =

                       = 6 m

(iv)  For w = 36 J, and F = 18 N then value of d will be as follows.

                    d =

                       =

                       = 2 m

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