If two uncharged objects are rubbed together and one of them acquires a negative charge, then the other a. one remains uncharged. b. also acquires a negative charge. c. acquires a positive charge. d. acquires a positive charge equal to twice the negative charge. e. acquires a positive charge equal to half the negative charge.

c) acquires a positive charge

Explanation: An object will be negatively charged if it receives an electronic charge and positively charged if it loses an electronic charge.

Back to our question, two uncharged object are rubbed on each other and one acquired a negative charge, this simply implies that the first body got the electronic charge from the second.

The second lost electronic charge to the first thus making it a positive charge.

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards