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igomit [66]
4 years ago
9

Please help me : (

Physics
1 answer:
Alex777 [14]4 years ago
5 0
The correct answer is B) One atom of calcium and two atoms of chlorine. I just had the same question on my 9th grade science test today. I hope I didn't give the answer to you too late and I hope it helps you out
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A 350-watt vacuum is plugged into a 120-volt outlet and used for 30 seconds. How much current runs through the vacuum? 2.9 amps
myrzilka [38]

                                           Power  =  (voltage)  x  (current)

                                      350 watts  =  (120 volts) x (current)

                                      350 watts / 120 volts = current

                                            current  =  2.917 Amperes  continuously
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3 years ago
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777dan777 [17]
The instantaneous velocity of the object is its speed and direction at that instant.
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3 years ago
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Which of the following would be the best name for MgCl2?
Juliette [100K]
MgCl2 is magnesium chloride.
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8 0
4 years ago
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How far will a free falling object fall in 8.7 secs if it started from rest? Remember acceleration is negative for free fall. Do
sleet_krkn [62]

Answer:

h~=371.26m

Explanation:

when an object falls we use the equations of accelerated motion. There is only one that gives distance.

x = ut +  \frac{1}{2} a {t}^{2}

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where a we substitute g (gravitational acceleration, constant for given heights and almost 9.81m/s^2).

h =  \frac{1}{2} g {t}^{2}  =  \frac{1}{2}  \times 9.81 \times  {8.7}^{2}  = 371.26m

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3 years ago
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sladkih [1.3K]

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