3 years ago

Spaceship 1 and Spaceship 2 have equal masses of 300 kg. Spaceship 1 has

Physics

1 answer:

UkoKoshka [18]3 years ago

4 0

Answer:

30 m/s

Explanation:

Momentum = mass × speed

9000 kg m/s = (300 kg) v

v = 30 m/s

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3 years ago

What is it called when velocity changes over time

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3 years ago

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3 years ago

A body weights 50 N in air and 45 N when wholly immersed in water calculate (i) the loss in weight of the body in water (ii) the

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Answer:

$difference \: in \: weight = 150n - 100n = 50n$

Now,buyantant force

$difference \: in \: weight \: = volume(body) \times density \: of \: water \: \times g$

so;

$50 = {v}^{b} \times 1 \times {10}^{3} \times 9.8m {s}^{2}$

${v}^{b} = \frac{50}{1000 } \times 9.8$

$= \frac{50}{9800}$

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Now,

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$= \frac{150}{0.0051} \times 9.8 \\ x = 3000$

And now,

$specific \: density \: = \frac{density of \: the \: body}{density \: of \: water}$

$= \frac{3000}{1000}$

$= 3$

Hence that,specific density of a given body is 3

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