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bogdanovich [222]
3 years ago
6

Please help!!!!!!!!!!

Physics
1 answer:
pshichka [43]3 years ago
5 0

Answer:

D

Explanation:

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A material that has high resistance to the flow of electric current is called an electric ______
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A material that has high resistance to the flow of electric current is called an electric resistor
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According to newtons law of action reaction what is the most likely to occur if to ice skaters with approximately the same mass
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If each of the three rotor helicopter blades is 3.50 m long and has a mass of 120 kg , calculate the moment of inertia of the th
devlian [24]

Answer:

1470kgm²

Explanation:

The formula for expressing the moment of inertial is expressed as;

I = 1/3mr²

m is the mass of the body

r is the radius

Since there are three rotor blades, the moment of inertia will be;

I = 3(1/3mr²)

I = mr²

Given

m = 120kg

r = 3.50m

Required

Moment of inertia

Substitute the given values and get I

I = 120(3.50)²

I = 120(12.25)

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Hence the moment of inertial of the three rotor blades about the axis of rotation is 1470kgm²

7 0
3 years ago
Who first used the word atom to describe the smallest unit
Firlakuza [10]

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Explanation: hope this helped

4 0
3 years ago
A Jeep accelerated at 2.2 m/s2 until after 18 seconds its displacement was 660 meters. Assuming the Jeep traveled in a straight
pogonyaev
Ok so we know:
The time (t) is 18seconds
The acceleration (a) is 2.2m/s2
The displacement (r) is 660

Using the equation
r = ut +  \frac{1}{2} a {t}^{2}
With 'u' being the initial velocity we want, we get:
660 = 18u + 356.4
So:
18u = 303.6
So:
u = 16.8666
So the original/initial velocity was 16.8666 or 16.87 m/s

Hope this helped

5 0
3 years ago
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