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Answers by Pengwang

Answers by Pengwang
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An enclosed gas exerts a pressure P on the walls of a container. This pressure is directly proportional to the temperature T of the gas, measured in Kelvin. If the pressure is 7 lb per square inch when
answered Nov 11, 2018
6 votes
102k views
How does regular exercise help make us more alert and energetic? 1 It gets our hearts beating faster and gives us a rush of energy. 2 We breathe in more oxygen while exercising, which helps us feel more
answered Sep 13, 2018
2 votes
158k views
How many sides does a polygon have if the sum of its interior angles is 1260
answered Aug 29, 2018
4 votes
120k views
In what ways do Roger and Mrs. Luella Bates Washington Jones, the main characters in Langston Hughes’s “Thank You, M’am,” show themselves to be different from what readers initially expect? What is the
answered Jan 19, 2018
7 votes
87.7k views
The sum of the digits of a certain two-digit number is 11. When you reverse its digits you increase by 9. What is the number?
answered Dec 9, 2017
4 votes
187k views
While you are waiting to begin a foot race, you can feel your heart rate go up. This is the _____ at work. A. sympathetic nervous system B. parasympathetic nervous system C. endocrine system D. central
answered Oct 30, 2017
4 votes
33.7k views
When the Egyptians conquered the Kush, Kushites quickly adopted many of their cultural practices, while in turn the Kush had no influence on Egyptian culture.
answered Sep 24, 2017
4 votes
201k views
A(n) _____ is a biased or oversimplified generalization about a group or type of person.
answered Jun 21, 2017
3 votes
82.5k views
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