7:As the temperature of an object ___________, the amount of thermal radiation emitted by the object _____________, but the wavelegnt of the emitted light __________. Blue light has _________ wavelenght compared to red light, so we often say that as temperature increases, the light emitted light becomes more _________

8 :Calculate the heat requird to raise the temperature of 150kgof water from 14 ⁰Cto 40 ⁰C,as is necessary for a typical bath: ____________Convert your answer tokWhr. There are 3.6 million joules(MJ) per kWhr. ____________ kWhr

Estimate the cost of a bath if energy is sold at 17 kWhr.Assume the water heater is 100 % efficient at converting electrical energy into thermal energy and transferring that to the water. ___________ dollars.

9: The visitor center at Zion National Park uses evaporative cooling towers to condition the inside air. During the day, the reveives heat from the environment through conduction, convection, and radiation. In order to maintain a constant temperature that heat must be removed. Evaporation of water in the center's cooling towers removes theat so the air conditioning system doesn't have to, which reduces energy usage and cost.

if the visitor center receives average of 45MJeach hour of heat from the environment, estimate the mass of water would need to be evaporated each hour in order to counter-balance all the incoming heat ___________kg per hour.

How many liters per hour of water would that be?____________ L

10:It requires ________ heat input to melt 1kg of ice than to evaporate 1 kg of water because the latent heat of _______ is __________ than the latent heat of ________

11 :A person suffering heat stroke is placed in an ice bath with 3.0 kgof ice at 0.0 ⁰C.

How much thermal energy would be removed from the body in order to melt all the ice?_________

How much would the temperature of an 80 kg body decrease due to the heat loss to the ice?(Use a specific heat of 3470 J/kg for the body. Ignore the fact that the body may be producing about 250 W of thermal power to make up for the heat loss to the ice because that rate is very small compared to the verall rate of het loss to the ice)___________

12 :Calculate the heat capacity of 150 kg of water: ____________ J