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navik [9.2K]
3 years ago
8

Find acceleration. Will give brainliest!

Physics
2 answers:
Art [367]3 years ago
8 0

Answer:

\boxed{\mathrm{4.5 \: kmph/s \: or \: 1.25 \: m/s^2 }}

Explanation:

\displaystyle \mathrm{acceleration = \frac{change \: in \: velocity}{time \: taken}}

\displaystyle \mathrm{a = \frac{v - u}{t}}

\displaystyle \mathrm{v=final \: velocity}\\\displaystyle \mathrm{u=initial \: velocity}

\displaystyle \mathrm{a = \frac{45- 0}{10}}

\displaystyle \mathrm{a = \frac{45}{10}}

\displaystyle \mathrm{a = 4.5}

\mathrm{4.5 \: kmph/s = 1.25 \: m/s^2 }

zalisa [80]3 years ago
7 0

Answer:

16200 km/s

270 km/min

4.5 km/h

Explanation:

Acceleration Formula: Average Acceleration = Δv/Δt (change in velocity over change in time)

Simply plug in our known variables and solve:

a = (45.0 - 0)/10

a = 45.0/10

a = 4.5 km/h

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bonufazy [111]
The distance it falls is given by
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6 0
3 years ago
A NATO base in northern Norway is warmed with a heat pump that uses 7.0 °C ocean water as the cold reservoir. Heat extracted fro
tatiyna

Answer:

3.33, 4.84

Explanation:

A) Actual coefficient of performance can be calculated by the formula stated below

Actual COP = heat delivered/ work required

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Actual COP = 3.33

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Tl = Low temperature = 7°C + 273 = 280K

The theoretical maximum coefficient of performance can ve calculated by the formula

Theoretical COP = Th/(Th-Tl)

Theoretical COP = 353/(353-280)

Theoretical COP = 353/73

Theoretical COP = 4.84

3 0
3 years ago
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Answer:

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= 300×750

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E = 225000

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7 0
2 years ago
Why does changing the shape of an object have no effect on the density?
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Because the object is still made of the same material 
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7 0
3 years ago
3. How does Earth’s rotation affect our view of stars
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If we try to keep watching one star, we have to keep changing the
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We can't feel the Earth rotating, so our brains say that the star  ... and
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