Chapter 3: Q. 3.17 (page 70)
Calculate the unknown temperature in each of the following:
a.
b.
c. localid="1651679546288"
d.
e.
Short Answer
a.
b.
c.role="math" localid="1651681461790"
d.role="math" localid="1651681457064"
e.
Chapter 3: Q. 3.17 (page 70)
Calculate the unknown temperature in each of the following:
a.
b.
c. localid="1651679546288"
d.
e.
a.
b.
c.role="math" localid="1651681461790"
d.role="math" localid="1651681457064"
e.
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Get started for freeFor dinner, Charles had one cup of clam chowder, which contains of carbohydrate, of fat, and of protein. How much energy, in kilocalories and kilojoules, is in the clam chowder? (Round off the answer for each food type to the tens place.)
The label of an energy bar with a mass of lists the nutrition facts as of carbohydrate, of fat, and of protein.
Using the energy values for carbohydrates, fats, and proteins (see Table), what are the total kilocalories listed for the energy bar? (Round off answers for each food type to the tens place.)
What are the kilojoules for the energy bar? (Round off answers for each food type to the tens place.)
If you obtain , how many grams of the energy bar did you eat?
If you are walking and using energy at a rate of , how many minutes will you need to walk to expend the energy from two energy bars?
Discuss the changes in the potential and kinetic energy of a ski jumper taking the elevator to the top of the jump and going down the ramp.
Draw a heating curve for a sample of ice that is heated from to . Indicate the segment of the graph that corresponds to each of the following:
a. solid
b. melting
c. liquid
d. boiling
c. gas
Use the heat equation to calculate the energy for each of the following (see Table 3.11 ):
a. calories to heat 8.5g of water from
b. joules lost when 25g of water cools from
c. kilocalories to heat 150g of water from
d. kilojoules to heat 175 g of copper from
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