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Pachacha [2.7K]
3 years ago
13

Can anyone solve this for me?? I need help ASAP!!

Physics
1 answer:
Pie3 years ago
6 0

Answer:

option A is rightttttttt

.......................

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3 years ago
A rocket is launched from rest and moves in a straight line at 30.0 degrees above the horizontal with an acceleration of 35.0 m/
klemol [59]

Answer:

t = 123.59s

Explanation:

For the launch pad section:

Vf = Vo + a*t  where Vo=0.

Vf = 35*25 = 875m/s

The distance traveled during the launch:

d = Vo*t+\frac{a*t^2}{2} = 0+\frac{35*25^2}{2} = 10937.5m

Now the projectile motion, we know that its initial speed is the speed calculated previously and the initial height is the y-component of the previously calculated distance.

\Delta Y = Vo*sin(30)*t - \frac{g*t^2}{2}

-d*sin(30) = Vo*sin(30)*t - \frac{g*t^2}{2}  where d= 10937.5m; Vo=875m/s.

Solving for t:

t1 = -11.093s   t2 = 98.59s

So, the total time of flight will be:

t_{total} = t_{launch}+t_{projectile}=25+98.59 = 123.59s

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3 years ago
An airplane travels 1200 km in 90 minutes. What is the average speed in m/s for this trip?
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Answer:

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Beth has built a simple series circuit using wire, a battery, a lightbulb, and a switch. The bulb, however, does not light up wh
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The right answer for the question that is being asked and shown above is that: "A. Reverse the way the wire is connected to the poles of the battery." the statement describes a step that will help troubleshoot and work toward the solution of this problem is that <span>Reverse the way the wire is connected to the poles of the battery.</span>
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WILL GIVE 15 PTS.
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