Homework Solutions

Chapters 19 & 20 Assignments

Date

Lesson

 

Ch 19 Homework #1 - 5:  Liquid Pressure

 

Lab 19.1:  Buoyed Up

 

Ch 19 Homework #6 - 7:  Archimedes' Principle

 

Ch 19 Homework #8 - 13:  Sink or Swim?

 

Lab 19.2:  Build A Boat 

 

 

 

 

Quiz:  Sections 19.1 - 19.5

 

Ch 19 Homework #14 - 17:  Pascal's Principle

 

Ch 20 Homework #1 - 6:  Air Pressure

 

Lab 20.1:  Bernoulli's Principle 

 

Ch. 19  Homework Bernoulliís Principle #7-11

 

 

Ch 20 Homework #12 - 16:  Lift Force

 

Lab 20.3:  Come Fly With Me 

 

Review

  Test:  Chapters 19 & 20
 

Chapters 19 & 20 Assignments due

 

  

 

 

Chapters 19 & 20 Homework Solutions

Chapter 19 Homework

Problem

Answer

 

Problem

Answer

#1

2940 Pa

 

#12

.451 N

#2

32.7 m

 

 

.451 N

 

11.3 m

 

#13

.0061 m3

#3

3500 Pa

 

 

3600 N

#4

2.0 x 107 Pa

 

#14

5 N

 

1.7 x 107 N

 

 

.2 cm

#5

1.07 x 106 Pa

 

 

1 N/cm2

 

107 m

 

#15

29 N

#6

.12 N

 

 

1.0 cm

#7

.0039 N

 

 

.83 N/cm2

 

.00058 N

 

#16

82.0 cm2

#10

21.2 N

 

#17

185 N

#11

2.25 N

 

 

 

 

2.3 m/s2

 

 

 

 

Chapter 20 Homework

Problem

Answer

 

Problem

Answer

#1

10.3 m

 

#11

67,800 Pa

#2

102,600 Pa

 

 

3070 Pa

#5

10.0 m

 

#12

122,000 N

#6

1380 N

 

 

86,000 N

#7

100,900 Pa

 

#13

19.2 Pa

#8

6.25 m/s

 

#14

52,100 N

 

15,000 Pa

 

#15

1.012 x 105 Pa

#9

1.012 x 105 Pa

 

 

.027 N 

#10

96,900 Pa

 

#16

1410 Pa

 

4400 Pa

 

 

35,200 N