Biology, 08.06.2020 07:57 perezsharisse24
Victoria pushes on a wall in front of her with a force of 25 N while she is
standing on roller skates. Which of the following is true?
A. A force less than 25 N pushes back on Victoria.
B. A force greater than 25 N pushes back on Victoria.
C. No force pushes back on Victoria because the wall doesn't move.
D. A force of 25 N pushes back on Victoria.
US
Answers: 2
Biology, 21.06.2019 18:30
Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine
Answers: 3
Biology, 22.06.2019 10:10
20 point pls brianliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?
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Biology, 22.06.2019 10:30
Which label correctly identifies what x represents in the concept map?
Answers: 2
Biology, 22.06.2019 16:50
Astudent completed a lab report. which correctly describes the difference between the “question” and “hypothesis” sections of her report? “question” states what she is asking, and “hypothesis” states the result of her experiment. “question” states what she is asking, and “hypothesis” states what she thinks the answer to that question is in “if . . then . . because” format. “question” describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. “question” describes what she is trying to find out, and “hypothesis” states any additional information or prior knowledge about the question.
Answers: 3
Victoria pushes on a wall in front of her with a force of 25 N while she is
standing on roller sk...
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