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Amiraneli [1.4K]
3 years ago
5

Which of the following has a negative acceleration?

Physics
1 answer:
Volgvan3 years ago
6 0

Answer:

B. A car sits at rest at a stop sign.

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Omar wrote a hypothesis about batteries called dry cells. If more dry cells are connected end to end, a light bulb will work lon
iren2701 [21]

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The independent variable is the number of dry cells and the dependent variable is the time the bulb works.

Explanation:

In this exercise, you are asked to analyze the variables derived from Ómar's hypotypeis

  "If more dry cells are connected end-to-end, a light bulb will work longer because more energy is available."

In this hypothesis, the independent variable that is controlled by the researcher is the number of batteries to be connected in series.

 

The dependent variable that is measured by the researcher is how long the bulbs last.

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7 0
3 years ago
Prove law of conservation of momentum ,??​
ziro4ka [17]

Explanation:

\law \: of \: conservation \: of \: momentum)

\frac{initial}{m1u1 + m2u2}  =  \frac{fi}{m 2u2}

<h3>BEFORE COLLISION) <em> </em><em><u>INITI</u></em><em><u>AL</u></em><em><u> </u></em><em><u>MOM</u></em><em><u>. </u></em><em><u>OF</u></em><em><u> </u></em><em><u>BODY</u></em><em><u> </u></em><em><u>A</u></em><em><u> </u></em><em><u> </u></em></h3>

<em><u>PiA</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>m1u1</u></em>

<em><u>After</u></em><em><u> </u></em><em><u>collis</u></em><em><u>ion</u></em><em><u>)</u></em><em><u> </u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>. </u></em><em><u>B</u></em><em><u> </u></em><em><u> </u></em><em><u>I. </u></em><em><u>e</u></em><em><u> </u></em><em><u>piB</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>m2u2</u></em>

<h2><em><u>FINÅL</u></em><em><u> </u></em><em><u>MOMEN</u></em><em><u>TUM</u></em><em><u> </u></em><em><u>OF</u></em><em><u> </u></em><em><u>BØDY</u></em><em><u> </u></em><em><u>A</u></em><em><u> </u></em><em><u>I. </u></em><em><u>e</u></em><em><u> </u></em><em><u>PfA</u></em><em><u>=</u></em><em><u> </u></em><em><u>m1v1</u></em></h2>

<em><u>FINAL</u></em><em><u> </u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>. </u></em><em><u>B</u></em><em><u> </u></em><em><u>I. </u></em><em><u>e</u></em><em><u> </u></em><em><u>PfB</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>m2v2</u></em>

<em><u>ùr</u></em><em><u> ãñswer</u></em><em><u> </u></em><em><u>✌️</u></em>

♠️♠️♠️♠️♠️♠️

7 0
2 years ago
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