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3 years ago

8

By using electroscope, if the body is negatively charged then due to electrostatic induction, then on the leaves there will be a

ppear:
(a) both positive and negative charges
(b) negative charge
(c) positive charge
(d) no charge

2 answers:

Kryger [21]3 years ago

6 0

(b) negative charge

This is the answer

Gnom [1K]3 years ago

5 0

It should be

B)Negative charge

Hope this one helped

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Why does an object in motion stay in motion unless acted on by an unbalanced force?

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Answer: A) because forces are what stop and start motion

Explanation:

From Newton's first law, an object tends to stay in state of rest or motion unless acted upon by an unbalanced external force. This is also known law of inertia. This is because a force can stop or start a motion. A force cause body to accelerate to decelerate otherwise the body continues with constant speed.

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Answer:

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Explanation:

We find the acceleration of the Airbus A320 jetliner from,

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So a = (v - u)/t = (82 m/s - 0 m/s)/35 s = 82 m/s ÷ 35 s = 2.34 m/s²

Now, the thrust of the engines on the jetliner T = ma where m = mass of jetliner = 75,000 kg and a = acceleration of jetliner = 2.34 m/s²

T = ma

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3 years ago

In this diagram, which force is represted by L?

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3 years ago

Alex787 [66]

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<em>math</em><em>ematically</em><em>,</em>

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<em>wher</em><em>e</em><em> </em><em>m</em><em>=</em><em> </em><em>mass</em>

<em>and</em><em> </em><em>v</em><em>=</em><em>veloc</em><em>ity</em>

<em>giv</em><em>en</em><em> </em><em>that</em><em>,</em><em> </em>

<em>kinet</em><em>ic</em><em> energy</em><em>=</em><em>4</em><em>9</em><em>3</em><em>9</em><em>0</em><em>0</em><em>J</em>

<em>mass</em><em> </em><em>=</em><em>5</em><em>0</em><em>4</em><em>0</em><em>k</em><em>g</em>

<em>maki</em><em>ng</em><em> </em><em>velo</em><em>city</em><em> </em><em>the</em><em> </em><em>su</em><em>bject</em>

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<em> $v = \sqrt{ \frac{987800}{5040} }$ </em>

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3 years ago