An object is pulled with two forces, 10 N northward and 15 N southward. The direction of the net force is to the
A) north.
B) south.
C) east.
D) west.
E) none of the above
Answer: B
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Two parallel conducting plates form a capacitor. It is isolated and a charge Q is placed on it. A metal cylinder of length half the plate separation is then inserted between the plates
HOW MANY of the quantities
C, ?V, Q, E, and U change?
A force is non-conservative if the net work done by the force on an object moving around any closed path is zero
Indicate whether the statement is true or false
Carbon dating requires that the object being tested contain
A) organic material. B) inorganic material. C) charcoal. D) none of the above
The electric potential inside a charged solid spherical conductor in equilibrium
a. is always zero. b. is constant and equal to its value at the surface. c. decreases from its value at the surface to a value of zero at the center. d. increases from its value at the surface to a value at the center that is a multiple of the potential at the surface. e. is equal to the charge passing through the surface per unit time divided by the resistance.