Calculate the increase in length of a zinc rod $50.0 \mathrm{~m}$ long at $15.0{\degree} \mathrm{C}$ when it is heated to $130.0{\degree} \mathrm{C}$.

A block of copper is heated from $20.0{\degree} \mathrm{C}$ to $80.0{\degree} \mathrm{C}$. Determine the heat absorbed by the copper if its mass is $60.0 \mathrm{~g}$ .

Calculate the joules of heat which are absorbed by an electric freezer in lowering the temperature of $1850 \mathrm{~g}$ of water from $80.0{\degree} \mathrm{C}$ to $10.0{\degree} \mathrm{C}$ .

Determine the heat flow in $15 \mathrm{~min}$ through a $0.10-\mathrm{cm}$-thick copper plate with crosssectional area $150 \mathrm{~cm}^2$ if the temperature of the hot side is $990{\degree} \mathrm{C}$ and the temperature of the cool side is $5{\degree} \mathrm{C}$.

Determine the thermal conductivity of a piece of building material $0.25 \mathrm{~in}$. thick that has an $R$ value of $1.6 \mathrm{~ft}^2{ }{\degree} \mathrm{F} / \mathrm{Btu} / \mathrm{h}$.

A coal sample yields $1.25 \times 10^4 \mathrm{~Btu} / \mathrm{lb}$. Calculate the foot-pounds of work resulted from burning $1.00$ ton of this coal.

What work a person must do to offset eating a $200\mathrm{~g}$ bag of potato chips $28 \mathrm{~g}$ of chips contain $150 \mathrm{~cal}$ ?

Determine the heat equivalent (in $\mathrm{kcal}$) of $7.63 \times 10^5 \mathrm{~J}$ of work.

The melting point of ethyl alcohol is $-179{\degree} \mathrm{F}$. Find the Celsius reading.

The temperature of an iced tea drink is $5{\degree} \mathrm{C}$. Calculate the Fahrenheit reading.

A solenoid that is 85.0 cm long has a cross-sectional area of

$$17 .0 cm^2$$

. There are 1210 turns of wire carrying a current of 6.60 A. (a) Calculate the energy density of the magnetic field inside the solenoid. (b) Find the total energy stored in the magnetic field there (neglect end effects).

Every winter a local recreation department fills a parking lot with water so that the water will freeze and people can ice skate on it. Although the weather does not get cold enough for the water to freeze, the water temperature drops from $4.30{\degree} \mathrm{C}$ to $0.00{\degree} \mathrm{C}$. Given that the water is $12.7 \mathrm{~cm}$ deep and the parking lot is $24.5 \mathrm{~m} \times 33.8 \mathrm{~m}$, what amount of heat energy does the water release into the air?

Mary mixes $5.00 \mathrm{~lb}$ of water at $200{\degree} \mathrm{F}$ with $7.00 \mathrm{~lb}$ of water at $65.0{\degree} \mathrm{F}$. Calculate the final temperature of the mixture.

What is the magnification of a magnifying lens with a focal length of 10 cm if it is held 3.0 cm from the eye and the object is 12 cm from the eye?