Two point charges are enclosed by a spherical conducting shell that has an inner and outer radius of 13.0 and 15.2 cm, respectively. One point charge has a charge of q1=8.30 μC, while the second point charge has an unknown charge q2 . The conducting shell is known to have a net electric charge of −2.40 μC, but measurements find that the charge on the outer shell is + 3.70 μC. Determine the charge q2 of the second point charge.

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

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

conservation of mass

mass before something happens = mass afterwards