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Andrei [34K]
3 years ago
11

If grade 7 students learn six periods and if one period is 40 minutes then how many seconds they learn per day

Physics
2 answers:
Ludmilka [50]3 years ago
6 0

Answer:

C. 14400

Explanation:

40min × 6 periods = 240mins total.

1 minute = 60 seconds.

240 minutes × 60 = 14400 seconds.

AURORKA [14]3 years ago
4 0
The answer is C.14400
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The acceleration exerted by the object of mass 10 kg is \mathbf{1} m / \boldsymbol{s}^{2}

Answer: Option A

<u>Explanation:</u>

According to Newton’s second law of motion, any external force acting on a body will be directly proportional to the mass of the body as well as acceleration exerted by the body. So, the net external force acting on any object will be equal to the product of mass of the object with acceleration exerted by the object. Thus,

                  Force = Mass \times Acceleration

So,

                 Acceleration=\frac{\text {Force}}{\text {Mass}}

As the force acting on the object is stated as 10 N and the mass of the object is given as 10 kg, then the acceleration will be

                  Acceleration =\frac{10 \mathrm{N}}{10 \mathrm{kg}}=1 \mathrm{m} / \mathrm{s}^{2}

So, the acceleration exerted by the object of mass 10 kg is \mathbf{1} m / \boldsymbol{s}^{2}

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3 years ago
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“In a 2009 study, presented by the National Academy of Science, 97% of climate scientists agree that human activity is causing g
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The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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3 years ago
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-g A small block is attached to an ideal spring and is moving in SHM on a horizontal frictionless surface. The amplitude of the
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Answer:

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Explanation:

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We know that maximum velocity in the SHM  given as

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