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3 years ago

6

A student is helping her teacher move a 9.5 kg box of books. What net sideways force must she exert on the box to slide it acros

s the floor so that is accelerates at 1.0m/s2?

1 answer:

Lilit [14]3 years ago

6 0

As we know that mass of the box is given as

m = 9.5 kg

acceleration of the box is given as

$a = 1 m/s^2$

so by Newton's II law we can say

$F = ma$

now we can substitute all the values in it

$F = 9.5 \times 1$

$F = 9.5 N$

So it required 9.5 N force to slide it

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The longest wavelength of radiation used to break carbon-carbon bonds is 344 nm.

<u>Explanation:</u>

The longest wavelength of radiation can also be stated as the minimum radiation frequency required to cut carbon-carbon bond should be equal to the threshold energy of the carbon-carbon bonds.

The threshold energy will be equal to the binding energy of the carbon-carbon bonds. As it is known that carbon-carbon bonds exhibit a binding energy of 348 kJ/mole, the threshold energy to break it, is determined as followed.

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A 6.9-kg wheel with geometric radius m has radius of gyration computed about its mass center given by m. A massless bar at angle

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Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is $\alpha =2.538 \ rad/s^2$

Explanation:

From the question we are told that

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