Questions by Pegasis

Questions by Pegasis

Marissa is standing on a at the edge of a canyon. She yells loudly and hears an echo 1.6 s later. How far away is the other side of the canyon? You may assume the speed of sound is 340 m/s.

asked Sep 3, 2020

2 answers

5 votes

35.1k views

In the 1830s, with invention of Cyrus McCormick’s reaper, one person could do the farm work previously done by five people. What happens to many of the workers who were no longer needed on farms? A. The

asked Aug 12, 2020

1 answer

5 votes

33.4k views

A "closed shop" was a business in which only union workers could be hired. True or False

asked Jul 10, 2020

2 answers

4 votes

75.8k views

Tree has a shadow that is 9 feet long what us is 4 feet tall and a standing next to the tree that is has a shadow that is 4.5 feet long how tall is the tree

asked Apr 23, 2020

1 answer

4 votes

5.4k views

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