Water is used to cool down automobile engines when they get hot. why is water used as a coolant?
water is a good conductor.
water is a good insulator.
water has a low heat capacity.
water has a high heat capacity.
water is a good radiator of heat.

Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.