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3 years ago

HELP QUICK! Please can anyone do the other half for me

Physics

1 answer:

IrinaVladis [17]3 years ago

4 0

Answer:

9) c

10) c

11) d

12) d

Explanation:

I think it's helps you

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What is the magnitude of the force required to stretch a 20 cm-long spring, with a spring constant of 100 N/m, to a length of 21

GalinKa [24]

The correct answer to the question is: 1 N.

EXPLANATION:

As per the question, the spring constant or the force constant of the spring is given as k = 100 N/m.

The original length of the spring L = 20 cm.

The stretched length of the spring L'= 21 cm.

Hence, the change in length will be-

∆L = L' - L

= 21 cm - 20 cm

= 1 cm

= 0.01 m

We are asked to calculate the magnitude of force acting on the spring .

From Hooke's law, we know that the restoring force that acts on the spring is proportional to the distance .

Mathematically it can be written as -

F = - kx.

Here, k is the force constant.

x is the change in length due to compression or elongation.

The negative sign is due to the fact that it is opposite to the applied force.

Hence, the applied force on the spring is calculated as -

F = kx

= k × ∆L

= 100 N/ m × 0.01 m

= 1 N.

Hence, the force acting on the spring is 1 N.

8 0

4 years ago

A 36,287 kg truck has a momentum of 907,175 kg • . What is the truck’s velocity

yuradex [85]

Momentum = (mass) x (speed) .

So 907,175 kg-m/s = (36,287 kg) x (speed)

Divide each side by (36,287 kg):

Speed = (907,175 kg-m/s) / (36,287 kg)

Speed = 25 m/s

That's the truck's speed. We can't do anything that involves the truck's velocity, because we don't know what direction the truck is moving.

4 0

4 years ago

Read 2 more answers

The picture to the right shows which wave behavior?

kifflom [539]

Answer:

It is refraction

Explanation:

6 0

3 years ago

Read 2 more answers

A charge of +0.001 C is 1 m to your right and another charge of +1000 C is 1 m to your left. You are holding a charge of −1 C. W

almond37 [142]

Answer:

C and D

Explanation:

Charge on right = +0.001 C

Charge on left = 1000 C

Charge held in between = -1C

Ratio between right and left charge:

$=\frac{1000}{.001}\\\\=1\times 10^6$

Which shows charge on left exerts 1,000,000 times more force then charge on right

Charge on left is 1000 times greater in magnitude than charge held between and charge held between is 1000 times greater in magnitude than charge on right. So the magnitude of the force on the charge you are holding would be the same if it were +1 C instead of −1 C.

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3 years ago

The atmospheric features of Neptune are easier to see than those of Uranus because A. Neptune has greater warmth and less haze.

Lelechka [254]

If I’m being honest I think it’s a or b

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3 years ago