Hello, I got stuck mainly with the question. I was told before that I am only able to submit 3 sub parts at a time so here are the first three. Thank you!

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics
Section: Chapter Questions
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Hello, I got stuck mainly with the question. I was told before that I am only able to submit 3 sub parts at a time so here are the first three. Thank you!

QUESTION 1
Explain how the gravitational potential energy of an object can be changed?
G
QUESTION 2
G
ते
QUESTION 3
B
G
B
1
Explain mechanical energy, and describe the mechanical energy of a roller-coaster car immediately before it begins traveling down a big hill.
B
1
X²
1
x²
X₂
x²
X₂
Aa
On a microscopic level, what occurs when an ice cube becomes steam?
X₂
Aa
A‡
Aa
At
A
At
Ω 14
A
Ω 14
Q
14
Transcribed Image Text:QUESTION 1 Explain how the gravitational potential energy of an object can be changed? G QUESTION 2 G ते QUESTION 3 B G B 1 Explain mechanical energy, and describe the mechanical energy of a roller-coaster car immediately before it begins traveling down a big hill. B 1 X² 1 x² X₂ x² X₂ Aa On a microscopic level, what occurs when an ice cube becomes steam? X₂ Aa A‡ Aa At A At Ω 14 A Ω 14 Q 14
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