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Montano1993 [528]
2 years ago
7

How much force is needed to stretch a spring 1.2m if the spring constant is 8.5 N/m?

Physics
1 answer:
Assoli18 [71]2 years ago
6 0

Explanation:

spring constant k::8.5

and displacement x::1.2

f:? f: k×x

8.5×1.2:10.2N

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In order to add or subtract numbers in scientific notation do the exponents have to be the same
emmainna [20.7K]

Yes they do. So if you need to add or subtract a pair, then you have to first change one or the other so that they both have the same power of 10.

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3 years ago
A student in your class whom you kind-of like asks you come to watch a meteor shower. What exactly are you being invited to? a.
madam [21]

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2 years ago
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 19 kg object on the Ea
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The weight of anything in any place is

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7 0
3 years ago
A centrifuge rotor (hollow disk) is rotating at 10,000 rpm is shut off and brought to rest by a constant frictional torque of 1.
Y_Kistochka [10]

Answer:

The no of revolutions rotor turn before coming to rest is 1,601.1943 and time taken is equal to 19.21 seconds

Explanation:

here we know that torque = I×α

     α= angular acceleration

     I = moment of inertia of hollow disc = m×k^{2}

  given that m=4.37kg

                    k=0.0710m

           torque=1.2Nm

        w_{o}=10000\times \frac{\pi}{30} rad /s

         \alpha =\frac{torque}{I}

from the above equation we can calculate the angular acceleration of the hollow disc .

  since  w^{2}-w_o^{2} =2\alpha\theta

 from this above equation  \theta=\frac{w^{2}-w_{o}^{2}}{2\alpha }

   no of revolutions = \frac{\theta}{2\pi}  = 1,601.1943.

Now to calculate time we know that time = \frac{2\theta}{w+w_{o}}

   so upon calculating we will be getting t=19.21 seconds

5 0
3 years ago
When a hurricane nears land what causes the most damage
amid [387]
A storm surge which is when the winds of the hurricane pull water levels up and cause floods inland
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3 years ago
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