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Musya8 [376]
4 years ago
10

Determine the weight or mass of the object.

Physics
1 answer:
Lera25 [3.4K]4 years ago
6 0

Answer:

A: 9.99322kg

B: 6.86465N

C: 137.293N

D: 0.09993219kg

Explanation:

I just used a calculator, but one kg is 9.80665 Newtons for a reference point.

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A train travels 90 kilometers in 1 hour, and then 82 kilometers in 5 hours. What is it’s average speed?
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You plan to throw stones by using a sling that you whirl over your head. You will whirl the stone in a horizontal circle with a
MariettaO [177]

Answer:

330.635 meter per second square

Explanation:

Given

Height ,h = 2.50 m

Radius, r = 1.50 m

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Since, the stone is released and it falls towards the sky, its initial velocity is zero

As per equation

h = ut + \frac{1}{2} gt^2\\, we will evaluate "t"

Substituting the given values in above equation, we get

2.5 = 0 *t + 0.5 * 9.81 * t^2\\t^2 = \frac{2.5}{0.5*9.81}\\ t = \sqrt{0.5096} \\t = 0.714

Velocity

= \frac{d}{t} \\= \frac{15.9}{0.714}\\= 22.27

centripetal acceleration

= \frac{v^2}{r} \\= \frac{22.27^2}{1.5}\\ = 330.635\\

6 0
4 years ago
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