A. Explain why a mass of lead heats
up more quickly than an equal
mass of aluminium.

In a closed system, the total energy prior to an energy transformation is the total energy after. a. equal to b. unrelated to c. greater than d. less than

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]