Two conducting spheres, A and B, are separated by a distance of 2 meters between centers. Sphere A has a charge of +2 x 10^-4coulomb, and sphere B has a charge of
+6 x 10^-4 coulomb.
2 meters
+2 x 10 coulomb +6 x 10" couloinb
Which diagram best represents the electric lines of force around sphere A and sphere B?
A)
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D)
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Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.

What does every magnet possess? a. iron metal b.strong magnetic field c.repulsion d.north and south poles