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3 years ago

In 1985 in San Antonio, Texas, an entire hotel building was moved several

Physics

1 answer:

sleet_krkn [62]3 years ago

8 0

Answer:

The building was moved to a distance of, S = 510.2 m

Explanation:

Given data,

The mass of the building, m = 1.45 x 10⁶ kg

The work done to overcome the force of resistance, E = 1 x 10⁸ J

The force of resistance of the building, 2% of building weight

Fₓ = 2 x 1.45 x 10⁶ x 9.8 / 100

= 284200 N

The work done on the building,

E = Fₓ · S

∴ S = E / Fₓ

= 1.45 x 10⁶ / 284200 N

= 510.2 m

Hence, the building was moved to a distance of, S = 510.2 m

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Answer:

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3 years ago

A satellite has a mass of 5832 kg and is in a circular orbit 4.13 × 105 m above the surface of a planet. The period of the orbit

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Answer:

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Explanation:

Given,

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$T = 2\pi \sqrt{\frac{(R+h)^{3} }{R^{2} g} }$ second

Squaring the terms and solving it for 'g'

g = 4 π² $\frac{(R+h)^{3} }{R^{2}T^{2} }$ m/s²

Substituting the values in the above equation

g = 4 π² $\frac{(4.38X10^6+4.13X10^5)^{3} }{(4.38X10^6)^{2}X6840^{2}}$

g = 4.84 m/s²

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