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katen-ka-za [31]
3 years ago
6

How are speed and acceleration related

Engineering
2 answers:
erica [24]3 years ago
6 0
R = distance

dr/dt speed or with a direction, velocity

d(dr/dt)/dt = the time derivative of the velocity is called acceleration.

Speed is a scalar. Acceleration is a vector.
Marrrta [24]3 years ago
4 0

Answer:

The speed is 20 m/s, and the direction is "downward". Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

Explanation:

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3. A 4-m × 5-m × 7-m room is heated by the radiator of a steam-heating system. The steam radiator transfers heat at a rate of 10
Natali [406]

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14.52 minutes

<u>OR</u>

14 minutes and 31 seconds

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Let's first start by mentioning the specific heat of air at constant volume. We consider constant volume and NOT constant pressure because the volume of the room remains constant while pressure may vary.

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Heat required at constant volume: 0.718 * (change in temp) * (mass of air)

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Time taken = 1210.26 / 5000 = 0.24205 hours

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