Answers by Lei Li
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Answers by Lei Li

Answers by Lei Li
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A 1-kg ball is 10-m above a table when it is dropped. It bounces to a height of 7-m. a) How much energy is transferred to heat & sound during the bounce?b) Explain why this ball cannot bounce to a height
answered Dec 30, 2023
2 votes
84.5k views
Calculus Problem 1. Find the volume of the solid whose base is bounded by the graphs of y = 8 - x^2and y = x^2, with the indicated cross sections perpendicular to the x-axis: a. Squares b. Semi-Circles
answered Jul 22, 2023
4 votes
221k views
Tyler and Erin go out to eat . their food and beverages cost 52.25 and there is an 8% meals tax, how much is the bill? write your answer to the nearest cent
answered May 31, 2023
12 votes
136k views
-3(x² +2x-3)+3(x²+4x)​
answered Sep 22, 2022
4 votes
189k views
"The law is the expression of the general will. All citizens have a right to concur either personally or by their representatives in its formation. The law should be the same for all, whether it protects
answered Jul 24, 2022
10 votes
181k views
How does the Constitution prevent any of the three branches of government from becoming too powerful?
answered Jul 11, 2022
9 votes
8.2k views
Find the volume of the cylinder.
answered Mar 19, 2022
5 votes
70.1k views
Trevin puts 8 gallons of
answered Feb 21, 2022
1 vote
210k views
A train protection system automatically applies the brakes of a train if the speed limit for a segment of track is exceeded, or if the train enters a track segment that is currently signaled with a red
answered Feb 17, 2022
4 votes
230k views
If x = -12, y = -3; find xy? ​
answered Dec 30, 2021
1 vote
82.0k views
Please Help Me! This is Hard!
answered Nov 17, 2021
2 votes
111k views
Is Sc2S3 polar or non polar or ionic
answered Oct 29, 2021
1 vote
131k views
What species is trout not considered to be because it lives in freshwater
answered Oct 20, 2021
3 votes
227k views
If y varies directly as x and y = 198 when x = 22, find y when x = 182.
answered Jul 19, 2021
5 votes
11.8k views
How can we simplify 2x (3x2 + 4x5)?
answered Apr 22, 2021
4 votes
152k views
What expression represents the area of the triangle​
answered Mar 9, 2021
2 votes
76.4k views
Solve for h. 15.3 + 1 h =1.3- 1 h
answered Jan 16, 2021
4 votes
166k views
Which of the following major earthquakes did not occur at a boundary between tectonic plates? A South Carolina (U.S.A.) 1886 B San Francisco (U.S.A.) 1906 C Messina (southern Italy) 1908 D Chillan (Chile)
answered Oct 24, 2020
4 votes
41.6k views
What is the first mountain range west of the great plains?
answered Jun 9, 2020
1 vote
111k views
Slotnick Chemical received $230,000 from customers as deposits on returnable containers during 2018. Ten percent of the containers were not returned. The deposits are based on the container cost marked
answered Jan 26, 2020
7 votes
48.1k views
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