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Amiraneli [1.4K]

3 years ago

5

Which of the following has a negative acceleration?

1 answer:

Volgvan3 years ago

6 0

Answer:

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

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Why is it helpful to study the light that comes off stars?

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It is helpful to study the light that comes off stars because C. The light from a star gives hints of what elements make up a star.

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3 years ago

Longitudinal waves transfer energy ___________ to the direction of the wave motion.

viva [34]

Longitudinal waves transfer energy parallel to the direction of the wave motion

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3 years ago

Read 2 more answers

Paying off your debts will most likely

g100num [7]

I think the answer is d

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2 years ago

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]

Answer:

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.

When reviewing the different answers, the correct one is:

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

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