Physics, 16.11.2020 21:20 rouseallie9428
Which of the following does notdescribe why early people painted in caves?a. to express themselvesb. to draw mapsc. to teach hunting practicesd. to teach religious beliefs7.Which of the following bestdefines a land bridge?a. mammoth bones laid out over a body of waterb. a mountain range beside a body of waterc. a strip of land connecting two continentsd. a strip of coast along a rocky shore8.The region of the world that was likely occupied last by early humans wasa. South America. b.North America. c.southern Asia. d.northern Asia.9.Which of the following bestdescribes the advancements of the New Stone Age?a. using toolsb. gathering foodc. using seeds to grow cropsd. using fire to cook food10.What effect did farming have on people in the Stone Age?a. It allowed them to build permanent settlements. b.It allowed them to travel. c.It allowed them to paint caves. d.It allowed them to hunt for animals. Document based questions continued on next page. The steps commonly used by scientists in gathering information to test a hypothesis and solve problems is called
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Physics, 22.06.2019 15:30
Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work
Answers: 1
Physics, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
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Physics, 22.06.2019 19:00
The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
Answers: 1
Physics, 23.06.2019 09:50
James joule carefully measured the difference in temperature of the water at the top and bottom of a waterfall. why did he expect a difference
Answers: 3
Which of the following does notdescribe why early people painted in caves?a. to express themselvesb....
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