Aconducting sphere of radius r1= 0.38m has a total charge of q=.75 uc. a second uncharged conducting sphere of radius r2= 0.28m is then connected to the first by a thin conducting wire. the spheres are separated by a very large distance to their size. what is the total charge on sphere two, q2, in c?

The Q₂ is 0.318 μC

Explanation:

The charge flows is the same on both, then:

But:

Q = = 0.75 μC

Replacing:

The Q₂ is equal:

Q₂ = 0.75 - 0.432 = 0.318 μC

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.