4 years ago

Which is the best example of Newton’s SECOND law of motion:

Physics

1 answer:

Olin [163]4 years ago

6 0

Which is the best example of Newton’s SECOND law of motion:

C.) A baseball player hits a baseball that is pitched to him. The ball immediately soars back in the direction of the pitcher.

~Hope this answers your question!~

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I believe it is A. The human body would not function normally without essential body fat.

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3 years ago

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A circular saw spins at 6000 rpm , and its electronic brake is supposed to stop it in less than 2 s. As a quality-control specia

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Answer:

a. yes

Explanation:

The initial speed of the circular saw is:

$\dot n_{o} = \frac{6000}{60} \,\frac{rev}{s}$

$\dot n_{o} = 100\,\frac{rev}{s}$

Deceleration rate needed to stop the circular saw is:

$\ddot n = -\frac{100\,\frac{rev}{s} }{2\,s}$

$\ddot n = - 50\,\frac{rev}{s^{2}}$

The number of turns associated with such deceleration rate is:

$\Delta n = \frac{\dot n^{2}}{2\cdot \ddot n}$

$\Delta n = \frac{\left(100\,\frac{rev}{s} \right)^{2}}{2\cdot \left(50\,\frac{rev}{s^{2}} \right)}$

$\Delta n = 100\,rev$

Since the measured number of revolutions is lesser than calculated number of revolution, the circular saw meets specifications.

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3 years ago

Vectors are arrows that tell us two things about force...WEIGHT and DIRECTION

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False only direction not weight.

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An air bubble underwater has the same pressure as that of the surrounding water. As the air bubble rises toward the surface (and

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D Remains constant

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tekilochka [14]

The answer is 25.37 hope this helps

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