8. A student compresses a sponge. a) What happens to the volume of the sponge?Explain. b) What happens to its mass? Explain. c) What happens to the density?Explain.9. A rectangular block of metal has dimensions of .02 m x .03 m x .04 m. a) If the massof the block is .214 kg, find its density. b) Examine table 12.1 in your book. What metalis this block? c) Find the weight density of the block.10. Look up the density of gold in table 12.1 of your book (or online is fine.) a) Whatwould be the mass of 1 cubic meter of gold? b) Find the mass of a rectangular block ofgold with dimensions .035 m x .040 m x .025 m. c) What is the weight density of gold?d) Find the weight of a rectangular block of gold with dimensions.035 m x .040 m x .025 m.11. When a force is applied to a spring it stretches by 8 cm. a) By how much would thespring stretch if a force half as big was applied to it? b) What would be the stretch if aforce three times the original force was applied to the spring? c) What type ofrelationship exists between the force and the amount the spring stretches?

Answered: 8. A student compresses a sponge. a)…

8. A student compresses a sponge. a) What happens to the volume of the sponge? Explain. b) What happens to its mass? Explain. c) What happens to the density? Explain.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 89P: A container of water has a cross-sectional area of A=0.1m2 . A piston sits top of the water (see be...

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Concept explainers

Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.

Question

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8. A student compresses a sponge. a) What happens to the volume of the sponge?
Explain. b) What happens to its mass? Explain. c) What happens to the density?
Explain.
9. A rectangular block of metal has dimensions of .02 m x .03 m x .04 m. a) If the mass
of the block is .214 kg, find its density. b) Examine table 12.1 in your book. What metal
is this block? c) Find the weight density of the block.
10. Look up the density of gold in table 12.1 of your book (or online is fine.) a) What
would be the mass of 1 cubic meter of gold? b) Find the mass of a rectangular block of
gold with dimensions .035 m x .040 m x .025 m. c) What is the weight density of gold?
d) Find the weight of a rectangular block of gold with dimensions
.035 m x .040 m x .025 m.
11. When a force is applied to a spring it stretches by 8 cm. a) By how much would the
spring stretch if a force half as big was applied to it? b) What would be the stretch if a
force three times the original force was applied to the spring? c) What type of
relationship exists between the force and the amount the spring stretches?

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