Which type of coolant(s) usually is (are) used to remove heat from a nuclear reactor core? a.
water only
c.
liquid sodium or water
b.
liquid sodium only
d.
CFCs

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine