Need !
which statements describe the factors affecting the strength of an electrical force? check all that apply.
a. the weaker the charge on two objects, the stronger the electrical force between them.
b. the stronger the charge on two objects, the stronger the electrical force between them.
c. the charge of the two objects does not affect the strength of the electrical force between them.
d. the closer together two objects are, the stronger the electrical force between them.
e. the farther apart two objects are, the stronger the electrical force between them.
f. the distance between two objects does not affect the strength of the electrical force between them.

B. The stronger the charge on two objects, the stronger the electrical force between them.

D. The closer together two objects are, the stronger the electrical force between them.

Explanation:

As we know that electrical force between two charged objects is given as

here we know that

force is directly depends on the product of two charges

also it is inversely depends on the square of the distance between two charges

so here if we increase the charge the effect on force will be proportional to it so it will increase and since distance is inversely depends on force so on increasing the distance the force will decrease

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

answer; /// the above statement is (true);