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aliya0001 [1]
3 years ago
9

A bowling ball with a mass of 8 kg is moving at a speed of 5 m/s. What is its kinetic energy?

Physics
1 answer:
natali 33 [55]3 years ago
5 0

Answer:

100J

Explanation:

Kinetic energy=1/2mv^2

Kinetic energy=(1/2 x 8)x5^2

Kinetic energy=4x25

Kinetic energy=100

100J

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Answer:

mass = 61.16 kg

Explanation:

given data

distance = 50 m

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to find out

mass

solution

we will apply here energy equation  

that is

energy = m×g×h    .............1

put here all value m mass here and g = 9.81 and h is distance

energy = m×g×h

30000 = m×9.81×50

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kolbaska11 [484]

Answer:

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When a sound wave strikes a hard surface, the sound waves gets reflected back and bounces back to the observer and produces an echo. If the sound waves strikes a soft surface it absorbs the sound.

Although the direction of a sound changes but the echo sounds in the same way as the original sound.

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3 years ago
A bicyclist is traveling 10 m/s at 30 degrees
AysviL [449]

Explanation:

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Let's calculate his total momentum:

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Now we know that he's traveling 30 degrees south-east.

The momentum along the y axis will be:

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Gravity is a force of attraction that acts between two masses separated by distance

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