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denis23 [38]
2 years ago
6

A cruise ship has a mass of 100,000,000 kg and a kinetic energy of 5,000,000 kJ. Calculate the speed of the cruise ship.

Physics
1 answer:
KiRa [710]2 years ago
4 0

Explanation:

K.E = 5,000,000 KJ

MASS = 100,000,000 Kg

K.E = 1/2 MV^2

5000000 =  \frac{1}{2}  \times 100000000 \times v {}^{2}

5000000 = 50000000 \times v {}^{2}

v {}^{2}  =  \frac{5000000}{50000000}

v {}^{2}  =  \frac{5}{50}

therefore

v {}^{2}  =  \frac{1}{10}

v  =   \sqrt{0.1}

v = 0.316 m/s^2

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Answer:

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Answer:

at the beginning: 2.3\cdot 10^{-10} F

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Later, the plates are pulled apart to d=1.63 cm=0.0163 m, so the capacitance becomes

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