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3 years ago

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A young man and woman are sitting on opposite sides of a park bench (1m). If the young man has a mass of 70kg and the woman has

a mass of 60kg, what is the force between them?

1 answer:

ZanzabumX [31]3 years ago

6 0

Answer:

130N

Explanation:

F<em>=</em><em>(</em><em>M1+</em><em>M</em><em>2</em><em>)</em><em>V</em>

<em>F=</em><em> </em><em>(</em><em>7</em><em>0</em><em>+</em><em>6</em><em>0</em><em>)</em><em>*</em><em>1</em>

<em>F=</em><em>1</em><em>3</em><em>0</em><em>*</em><em>1</em>

<em>F=</em><em>1</em><em>3</em><em>0</em><em>N</em><em>/</em><em>/</em>

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Sveta_85 [38]

Answer:

b.) Length

Explanation:

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3 years ago

If you start rolling down this hill, your potential energy will be converted to kinetic energy. At the bottom of the hill ypu KE

Serjik [45]

Answer:

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Explanation:

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Make $v$ the subject of the formula to get speed at the bottom of the hill.

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3 years ago

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den301095 [7]

A: 0.7 -0.8 and 0hrs
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3 years ago

Read 2 more answers

An engine has an energy input of 125 J, and 35 J of that energy is transformed into useful energy. What is the efficiency of the

xeze [42]

The efficiency of the engine at the given useful energy and input energy is 28%.

The given parameters:

<em>Input energy of the engine, = 125 J</em>
<em>Useful energy of the engine, 35 J</em>

The efficiency of the engine is defined as the ratio of the output energy (useful energy) to the input energy and it is calculated as follows;

$efficiency\ = \frac{0ut put \ energy}{1nput \ energy} \times \ 100\%\\\\efficiency\ = \frac{35}{125} \times 100\%\\\\efficiency\ = 28 \ \%$

Thus, the efficiency of the engine at the given useful energy and input energy is 28%.

Learn more about efficiency of engine here: brainly.com/question/6751595

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2 years ago

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BigorU [14]

So i believe is exercise:)

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3 years ago