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2 years ago

A Bear moves at a speed of 8 m/s for a distance of 300 m. How long does it take the Bear to travel this distance?

Physics

1 answer:

Lera25 [3.4K]2 years ago

8 0

Answer:

2,400

Explanation:

Because when we use the formula D=st and we plug in our numbers it should look like D=8x300 . And when we do the math of multiplication it gives us the answer of 2,400 .

Hoped I helped <3

Sleepy~

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2 years ago

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A rock, with a density of 3.55 g/cm^3 and a volume of 470 cm^3, is thrown in a lake. a) What is the weight of the rock out of th

SIZIF [17.4K]

Answer:

a) Weight of the rock out of the water = 16.37 N

b) Buoyancy force = 4.61 N

c) Mass of the water displaced = 0.47 kg

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Explanation:

a) Mass of the rock out of the water = Volume x Density

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b) Buoyancy force = Volume x Density of liquid x Acceleration due to gravity.

Volume = 470 cm³

Density of liquid = 1 g/cm³

$\texttt{Buoyancy force}= \frac{470\times 1\times 9.81}{1000} = 4.61 N$

c) Mass of the water displaced = Volume of body x Density of liquid

Mass of the water displaced = 470 x 1 = 470 g = 0.47 kg

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Weight of rock under water = 16.37 - 4.61 =11.76 N

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2 years ago

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