Energy problems
19.1f your object has a mass of 3kg and you hold it 3.5m above the earth's surface, what
objects potential energy?
al 10.5
b. 102.9)
c. 1.07)
d. 31.5)
hefort

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

Amixture with the same composition throughout is!