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Answers by PRB

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a person pushes a box up a ramp that is 3m long and 1 m high if the box has a mass of 20 kg and the person pushes with a force of 80 N what is the efficiency of the ramp
answered Mar 29, 2020
3 votes
50.2k views
Alex travels 35 miles per hour.How many miles will he travel in 6 hours
answered Jun 27, 2019
3 votes
36.8k views
Another theory of sleep holds that sleep is _____________ because it allows our bodies to rebuild tissues, consolidate memories, and organize our recent learning.
answered Jun 17, 2019
6 votes
41.5k views
The school cafeteria ordered forty three red apples and thirty two green apples for student lunches , but if only two students wanted fruit how many extra did the cafeteria end up with
answered Jun 10, 2019
5 votes
163k views
Overharvesting encourages extinction of many different types of animals. from the list below, select the type of animal that is most likely affected by overharvesting. question 2 options: a.edge-adapted
answered Feb 9, 2019
5 votes
3.1k views
What is the perimeter of the figure?
answered Jan 15, 2019
4 votes
115k views
As a baby, charlie resisted being held and showed no interest in human stimulation. usually passive, he sometimes played with his wind-up toys but did not respond to his name being called and showed outbursts
answered May 21, 2018
3 votes
112k views
Find the length of the unknown side. Round your answer to the nearest whole number. Image of a right triangle with legs labeled 5 inches each and hypotenuse unknown.
answered Apr 27, 2018
7 votes
55.3k views
I need answers to 60, 62, 64
answered Mar 23, 2018
4 votes
222k views
What was the name of the order that established the Appalachian Mountains as the western boundary of the british colonies
answered Feb 23, 2018
5 votes
679 views
Ignore my working already. Could I have an explanation aswell, thanks.
answered Dec 14, 2017
1 vote
171k views
In 2 or 3 sentences, explain how an increase in government spending can increase the national debt.
answered Nov 14, 2017
7 votes
204k views
Sandra wants to improve her body composition. Four of her friends have given her advice. Analyze the sentences to determine which friend gave her the BEST piece of advice? A. Sanchez told her to take diet
answered May 4, 2017
5 votes
225k views
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