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slava [35]
2 years ago
7

Use the Electrostatic Series to predict the charges on the following pairs of substances when they are rubbed together:

Physics
1 answer:
Lisa [10]2 years ago
6 0
Answer: Not 100% sure but I believe the answer is B.

Hope this helps! ^^
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180 J of work is done when lifting a box up to a shelf that is 3 m high. What is the mass of the box?
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Explanation:

Work done= MGH

180=m×10×3

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m=6kg

4 0
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If you hold your hand over a pot of boiling water, it feels hot. Explain how the boiling water is transforming heat to your hand
MakcuM [25]

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8 0
3 years ago
Read 2 more answers
A truck travels up a hill with a 5.7° incline. The truck has a constant speed of 22 m/s. What is the horizontal component of the
tester [92]

Answer:

The horizontal component of the velocity is 21.9 m/s.

Explanation:

Please see the attached figure for a better understanding of the problem.

Notice that the vector v and its x and y-components (vx and vy) form a right triangle. Then, we can use trigonometry to find the magnitude of vx, the horizontal component of the velocity.

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cos α = adjacent / hypotenuse

cos 5.7° = vx / 22 m/s

22 m/s · cos 5.7° = vx

vx = 21.9 m/s

The horizontal component of the velocity is 21.9 m/s.

8 0
2 years ago
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The answer is A, because it’s the first one
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