3 years ago

ANSWER ASAP

Physics

2 answers:

Temka [501]3 years ago

8 0

5.6 g/ml is the answer

shtirl [24]3 years ago

5 0

5.6 g/ml. That is the density.

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An airplane changes its velocity uniformly from 150 m/s to 60 m/s in 15 s. Calculate:

Arlecino [84]

Answer:2.5

Explanation:

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3 years ago

A playground merry-go-round has radius 2.40 m and moment of inertia 2100 kg⋅m2 about a vertical axle through its center, and it

daser333 [38]

Answer:

a) 0.31 rad/s

b) 100 J

c) 6.67 W

Explanation:

(a) the force would generate a torque of:

$T = FR = 18 * 2.4 = 43.2 Nm$

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$\omega = \alpha t = 0.021 * 15 = 0.31 rad/s$

(b) The distance angle swept by it is:

$\theta = \frac{\alpha t^2}{2} = \frac{0.021 * 15^2}{2} = 2.314 rad$

Hence the work by the child

$W = T\theta = 43.2 *2.314 \approx 100 J$

c) Average power to work per time unit

$P = \frac{W}{t} = \frac{100}{15} = 6.67 W$

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3 years ago

What is the difference between celestial and terrestrial in planetary terms? Someone please answer

andriy [413]

"Celestial" = anything to do with the sky

("Cielo" ..... Spanish for "sky"
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"Terrestrial" = anything to do with the Earth

("Terra" ... Latin for "Earth")

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3 years ago

Calculate the work efecttuated, when the force is 300 N, and the distance is 300 meters.

Alexxx [7]

Hello!

Use the formula:

W = Fd

Replacing:

W = 300 N * 300 m

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The work is <u>90000 Joules.</u>

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3 years ago

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Answer:

a solution

Explanation: A solution is a homogeneous mixture consisting of a solute dissolved into a solvent .

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3 years ago