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Which of the following is not permitted, based on the second law of thermodynamics? A. Heat flowing from cold to hot B. A machine that is 80% efficient C. Heat being completely converted into mechanical
answered
Jun 18, 2021
Physics
college
1
vote
8.2k
views
What level of economic actvity does education occur in?
answered
May 22, 2021
Geography
high-school
1
vote
173k
views
A rectangles width is 13 more than its length. If the perimeter is 82 feet what is the length and width.
answered
Apr 27, 2021
Mathematics
high-school
3
votes
173k
views
What Is the area of a circle circumference I have 20 pi
answered
Mar 29, 2021
Mathematics
middle-school
0
votes
141k
views
What is the slope for C(3,2),D(-2,1) ?
answered
Jan 8, 2021
Geography
high-school
2
votes
119k
views
Which is a difference between a compound light microscope and a transmission electron microscope? A.The compound light microscope can only view specimens in black and white, while the transmission electron
answered
Dec 11, 2020
Biology
high-school
4
votes
34.4k
views
Which of the following describes the roots of the polynomial function K x) - (x+ 2)(x-4)(x+1)3?
answered
Nov 10, 2020
Mathematics
middle-school
4
votes
113k
views
Complete the statement by filling in the blanks: When constructing a confidence interval, if the level of confidence increases, the margin of error must _____ and the confidence interval will be _____.
answered
May 25, 2020
Mathematics
college
3
votes
232k
views
Factor out a negative 1 for the expression. -9 – 1
answered
Mar 23, 2020
Mathematics
middle-school
6
votes
73.3k
views
Many of the gains in u.s. productivity can be attributed to ________.
answered
Mar 15, 2020
History
high-school
2
votes
12.9k
views
Which is a major role of a free press in a democratic society? inform readers censor the government provide entertainment
answered
Feb 12, 2020
History
middle-school
4
votes
216k
views
What economic advantage did the North have over the South in the early 1800s? A) Immigrants from Europe settled primarily in the South, taking jobs and causing financial hardships. B) Large-scale agricultural
answered
Feb 11, 2020
History
middle-school
6
votes
200k
views
Insulin is the enzyme that breaks down complex carbohydrates into glucose. insulin is the enzyme that breaks down complex carbohydrates into glucose. a. True b. False
answered
Dec 26, 2019
Biology
high-school
3
votes
77.2k
views
What did thomas paines common sense influence the founding fathers to do
answered
Jul 25, 2019
History
college
3
votes
184k
views
Can you please answer the second and fourth questions please!
answered
Jan 28, 2019
Biology
middle-school
6
votes
7.2k
views
Jackson belived that he had the right to replace federal workers with people who had supported him is true or false
answered
Nov 9, 2018
History
high-school
1
vote
95.2k
views
Convert 5/8 to a decimal and tell whether it terminates or repeats
answered
Jun 16, 2018
Mathematics
high-school
1
vote
206k
views
What is the equation of the quadratic graph with a focus of (2, − 2) and a directrix of y = 0?
answered
May 29, 2018
Mathematics
college
5
votes
155k
views
Line is defined as a ______________________
answered
May 17, 2018
Arts
high-school
5
votes
70.9k
views
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