Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)

1st Edition

ISBN: 9780078945830

Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike

Publisher: Glencoe Mcgraw-Hill

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Question

Chapter 21.1, Problem 3PP

To determine

The lost surface area of a rectangular cube is to becalculated if two smaller cubes with each side being $5 cm$ are attached together.

Expert Solution & Answer

Answer to Problem 3PP

Surface area of rectangular cube is lost by $50 cm2$ .

Explanation of Solution

Given information:

Each side to two cubes=5 cm.

Formula used:

The surface area of cube = $6s2$

Area of rectangular pieces $=2(lw+lh+hw)$

Calculation:

The surface area of each cube

$=6(5)2=6×25=150 cm2$

The total surface area of both cubes

$=150+150=300 cm2$

When two cubes are attached, then the area of the rectangular piece is

$Surface of rectangular piece =2(lw+lh+hw)$

$=2(5×10+5×5+5×10)$

$=2(50+25+50)$

$=2(125)$

$=250 cm2$

$Surface Area Lost=300cm2−250cm2=50cm2$

Conclusion:

The surface area of the rectangular cube is lost by $50 cm2$ .

Chapter 21.1, Problem 2PP

Chapter 21.1, Problem 4R

Chapter 21 Solutions

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)

Ch. 21.1 - Prob. 1PP Ch. 21.1 - Prob. 2PP Ch. 21.1 - Prob. 3PP Ch. 21.1 - Prob. 4R Ch. 21.1 - Prob. 5R Ch. 21.1 - Prob. 6R Ch. 21.1 - Prob. 7R Ch. 21.1 - Prob. 8R Ch. 21.1 - Prob. 9R Ch. 21.2 - Prob. 10R

Ch. 21.2 - Prob. 11R Ch. 21.2 - Prob. 12R Ch. 21.2 - Prob. 13R Ch. 21.2 - Prob. 14R Ch. 21.3 - Prob. 16R Ch. 21.3 - Prob. 17R Ch. 21.3 - Prob. 18R Ch. 21.3 - Prob. 19R Ch. 21.3 - Prob. 20R Ch. 21.4 - Prob. 21R Ch. 21.4 - Prob. 22R Ch. 21.4 - Prob. 23R Ch. 21.4 - Prob. 24R Ch. 21.4 - Prob. 25R Ch. 21.4 - Prob. 26R Ch. 21.4 - Prob. 27R Ch. 21 - Prob. 28R Ch. 21 - Prob. 29R Ch. 21 - Prob. 30R Ch. 21 - Prob. 31R Ch. 21 - Prob. 32R Ch. 21 - Prob. 33R Ch. 21 - Prob. 34R Ch. 21 - Prob. 35R Ch. 21 - Prob. 36R Ch. 21 - Prob. 37R Ch. 21 - Prob. 38R Ch. 21 - Prob. 39R Ch. 21 - Prob. 40R Ch. 21 - Prob. 41R Ch. 21 - Prob. 42R Ch. 21 - Prob. 43R Ch. 21 - Prob. 44R Ch. 21 - Prob. 45R Ch. 21 - Prob. 46R Ch. 21 - Prob. 47R Ch. 21 - Prob. 48R Ch. 21 - Prob. 49R Ch. 21 - Prob. 50R Ch. 21 - Prob. 51R Ch. 21 - Prob. 1STP Ch. 21 - Prob. 2STP Ch. 21 - Prob. 3STP Ch. 21 - Prob. 4STP Ch. 21 - Prob. 5STP Ch. 21 - Prob. 6STP Ch. 21 - Prob. 7STP Ch. 21 - Prob. 8STP Ch. 21 - Prob. 9STP Ch. 21 - Prob. 10STP Ch. 21 - Prob. 11STP Ch. 21 - Prob. 12STP Ch. 21 - Prob. 13STP Ch. 21 - Prob. 14STP Ch. 21 - Prob. 15STP Ch. 21 - Prob. 16STP

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