what is the magnitude of the force of gravity acting in a box that has a mass of 100 kg at sea level?

force of gravity, F = 980 N

Explanation:

Given that,

The mass of the box, m = 100 kilograms

first we will need to find the magnitude of the force of acting on a box. we can used it with Newton second law.

F = ma

a = acceleration

Here,

F = mg

g = acceleration due to gravity

F=100\ kg\times 9.8\ m/s^2F=100 kg×9.8 m/s2

F = 980 N

Hence, the force acting on the object is 980 N.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.