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Step2247 [10]
3 years ago
10

PLSSS HELPPPPP!! due today @ 8:30!

Physics
1 answer:
romanna [79]3 years ago
4 0

Answer:

(1) weight = 565N

distance = 325m

time= 12.6s

power = work done/time

work done= force * distance

= 565*3.25 =1836.25

:. power = 1836.25\12.6

=145.7!

(2) the books will add more to her weight and thereby increasing her power output.

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Answer:

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Explanation:

The acceleration in a circular motion is defined as:

a = \frac{v^{2}}{r}  (1)

Where a is the centripetal acceleration, v the velocity and r is the radius.

The equation of the orbital velocity is defined as

v = \frac{2 \pi r}{T} (2)

Where r is the radius and T is the period

For this particular case, the radius will be the sum of the high of the satellite (1.50x10^{7} m) and the Earth radius (6.38x10^{6} m) :

r = 1.50x10^{7} m+6.38x10^{6}m

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T = 8.65 hrs \cdot \frac{3600 s}{1hrs} ⇒ 31140 s

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a = 0.87 m/s^{2}

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