How much heat is required to raise the temperature of 152 g of Aluminum from 25°C to 154°C?

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

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

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?