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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

A patient arrives in the emergency room with a burn caused by steam, Calculate the heat, in kilocalories, that is released when 18.0gof steam at 100∘C hits the skin, condenses, and cools to body temperature of 37.0∘C.

A 0.50-g sample of vegetable off is placed in a calorimeter. When the sample is burned, 18.9kJis given off. What is 4 energy value (kcal/g) for the oil? (3.5)

In a large building, oil is used in a steam boiler heating system. The combustion of 1.0lb of oil provides 2.4×107J. (3.4,3.6)

aHow many kilograms of oil are needed to heat 150kg of water from 22∘C to 100∘C ?

bHow many kilograms of oil are needed to change 150kg of water to steam at 100∘C ?

Calculate the heat change at 100°Cfor each of the following and indicate whether heat was absorbed/released:

a. calories to vaporize 10.0g of water

b. joules to vaporize 5.00g of water

c. kilocalories to condense 8.0kg of steam

d. kilojoules to condense 175g of steam

Indicate whether each of the following describes at gas, a liquid, or a solid:

a. The breathing mixture in a scuba tank has no definite volume or shape.

b. The neon atoms in a Fighting display do not interact with each other.

c. The particles in an ice cube are held in a rigid structure.
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