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vaieri [72.5K]
2 years ago
12

A student grabs a piece of paper and tears it from the middle. Which statement best explains the forces involved?

Physics
2 answers:
PolarNik [594]2 years ago
3 0

Answer:

b. The normal force between the molecules of the paper is overcome by the contact force of the hands.

Explanation:

The paper molecules are held together by a weak bond. When the student holds the paper on both sides with the center of the paper in between, the student applies two equal forces in the opposite direction of the paper making the paper molecules weaken and separate.

stich3 [128]2 years ago
3 0

Answer:

The electrostatic forces from the contact of the hands with the paper causes the paper molecules to separate.

Here's the rest of the answers

1.) Which statement is correct about the strength of forces?

Electrostatic forces are trillions of times stronger than gravitational forces.

2.) A student tries to push a book across a table. Which forces acting on the book are a result of electrostatic forces?

normal force and friction

3.) What type of force can explain how a gecko climbs up a wall?

contact forces

5.) A heavy hammer is sitting on top of a board. Which statement correctly describes why the hammer does not go through the board?

The electrostatic forces between the molecules of the board prevent the force of gravity from breaking the board apart.

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Answer:

A

Explanation:

The equation of power is defined as Power = Workdone/Time Taken

And workdone = Force x Distance so using these equations we get they workdone is, 200x 10 = 2000Nm.

Dividing workdone with time will yield power, 2000 ÷ 8 = 250 Nm/s = 250W.

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an object on a planet has a mass of 243 Kg. what is the acceleration of the object, if the radius of the planet is 2.32 x 10^7m
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Answer:

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2 years ago
I don’t understand this please help.
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I couldnt type it out so here's a picture
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2 years ago
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2 years ago
As of 2016, Nevada has a current minimum wage of $8.25 an hour ($/hr). If someone was really picky about how much they owed, how
xz_007 [3.2K]

Once again, you'd need to know that there are 60 seconds in a minute, and 60 minutes in an hour :)

I'd say converting the minimum wage into cents rather than dollars would make this problem a lot easier. $8.25 = 825 ¢.

So if this person is earning 825 ¢ in an hour, we should divide 825 by 60 to find out how much they're making in a minute:

825 ÷ 60 = 13.75 ¢

Now, we just need to divide by 60 again to work out how much that is in seconds:

13.75 ÷ 60 = 0.229 ¢

So to answer your question, this person would make 0.229 ¢ a second (¢/s) on the job with minimum wage. Converting this value to dollars wouldn't be viable (as it'd just be $0.00, so it's best to leave the answer in cents!)

6 0
3 years ago
Read 2 more answers
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