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Chapter 3: Q. 3.23 (page 73)

Indicate whether each of the following statements describes potential or kinetic energy?

a. water at the lop of a waterfall

b. kicking a ball

c. the energy in a lamp of coal

d. a skier at the top of a hill

Short Answer

Expert verified

a. Water at the lop of a waterfall - Potential Energy

b. Kicking a ball - Kinetic Energy

c. The energy in a lamp of coal - Potential Energy

d. A skier at the top of a hill - Potential Energy

Step by step solution

01

Given information (a)

(a) Potential or Kinetic energy of water at the lop of a waterfall

02

Explanation (a)

(a) Water atthe highest of a water fall describes P.E.

03

Given Information (b)

(b) Potential or Kinetic energy of kicking a ball

04

Explanation (b)

(b) Kicking a ball describes K.E.

05

Given Information (c)

(c) Potential or Kinetic energy of the energy in a lamp of coal

06

Explanation (c)

(c) The energyduring a lump of coal is P.E.

07

Given Information (d)

(d) Potential or Kinetic energy of a skier at the top of a hill

08

Explanation (d)

(d) Skier atthe highest of a hill describesP.E..

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Most popular questions from this chapter

Calculate the kilocalories for each of the following:

a one stalk of celery that produces125KJwhen burned in a calorimeter

b a waffle that produces870KJ when burned in a calorimeter

a. A patient with hyperthermia has a temperature of 106∘F.What does this read on a Celsius thermometer?

b. Because high fevers can cause convulsion's in children, the doctor needs to be called if the child's temperature goes over 40.0∘C. Should the doctor be called if a child has a temperature of 103∘F??

Using the energy values for foods (see Table), determine each of the following (round off the answer for each food type to the tens place):

(a) the total kilojoules for one cup of orange juice that contains 26 g of carbohydrate, no fat, and 2gof protein

(b) the grams of carbohydrate in one apple if the apple has no fat and no protein and provides 72kcalof energy

(c) the kilocalories in one tablespoon of vegetable oil, which contains14gof fat and no carbohydrate or protein

(d )the grams of fat in one avocado that has 405kcal, 13gof carbohydrate, and 5gof protein

Identify each of the following changes of state as evaporation, boiling, or condensation:

a. At 100∘Cthe water in at pan changes to steam.

b. On a cool morning, the windows in your car fog up.

C. A shallow pond dries up in the summer.

d. Your teakettle whistles when the water is ready for tea.

A patient receives 3.2Lof intravenous (IV) glucose solution. If 100mLof the solution contains of glucose (carbohy. drate), how many kilocalories did the patient obtain from the glucose solution?
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