A group of students has been testing electromagnets in the lab. They made an electromagnet by
wrapping copper wire around a nail. For one set of tests, they wrapped the wire around the nail 25 times.
For the second set of tests, they wrapped the wire around the nail 50 times. They also have 4 different
batteries: 1.5 V, 3.0 V, 4.5 V, 6.0 V, 7.5 V, 9.0 V, 10.5 V, and 12.0 V. They use their electromagnets to
see how many paper clips each can pick up.
1. Identify the independent variable:
2. Identify the dependent variable:
3. On which axis will the independent variable be plotted? ) x or y
Answers: 3
Chemistry, 21.06.2019 14:00
Your answer should have the same number or significant figures as a he starting measurement. 3201 ml =
Answers: 2
Chemistry, 22.06.2019 06:00
In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
Answers: 2
Chemistry, 22.06.2019 07:20
The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.
Answers: 1
Chemistry, 22.06.2019 10:40
Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant
Answers: 2
A group of students has been testing electromagnets in the lab. They made an electromagnet by
wrapp...
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