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Phoenix [80]
3 years ago
10

What’s the answer to 12

Physics
2 answers:
Delvig [45]3 years ago
5 0
It can be 1800 I think i can be wrong
Schach [20]3 years ago
4 0

Speed is v = d/t

Or speed is distance over time

So...

40min / 60min = 0.6667 or 2/3 --> Finding what proportion 40 minutes is to an hour or 60 minutes as we need the units of hours to match up

45km/h = d/0.6667h

d = (45)(0.667)

d = 30.0015 or 30km

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3 years ago
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ch4aika [34]

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6 0
3 years ago
An automatic dryer spins wet clothes at an angular speed of 5.2 rad/s. Starting from rest, the dryer reaches its operating speed
Dvinal [7]
<h2>Time taken by dryer to come up to speed is 1.625 seconds.</h2>

Explanation:

We have equation of motion v = u + at

     Initial velocity, u =  0 rad/s

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     Time, t = ?

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     Substituting

                      v = u + at  

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Time taken by dryer to come up to speed is 1.625 seconds.

6 0
3 years ago
Why is the force of gravity on your body weaker on the Moon than on the Earth?
andrezito [222]

Answer:

The moon’s gravity is weaker than the earth gravity due to the smaller in size as compared to the earth. As there is no atmosphere present on the moon gravity, so there are fewer chances of withstanding temperature.

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4 0
2 years ago
Which factors affect heat transfer between a warm and a cool substance?
andrey2020 [161]

Answer: B

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This means that we only have to choose between

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Area of contact matters more (e.g. an object with greater surface area is exposed to the air more, will lose/gain heat quicker than an object with less surface area).

5 0
2 years ago
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