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3 years ago

Fill in the blank

Physics

1 answer:

pochemuha3 years ago

7 0

Explanation:

Your awnser is light year

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An ice skater has a moment of inertia of 5.0 kg · m2when her arms are outstretched, and at this time she is spinning at 3.0 rev/

KatRina [158]

Answer:

Explanation:

Given

Initial Moment of Inertia $I_1=5 kg-m^2$

initial Spin $N_1=3 rev/s$

$\omega _1=2\pi N_1=2\pi 3=6\pi rad/s$

Final Moment Moment of Inertia $I_2=2 kg-m^2$

Conserving Angular momentum

$L_1=L_2$

$I_1\omega _1=I_2\omega _2$

$5\times 6\pi=2\times \omega _2$

$\omega _2=15\pi rad/s$

$N_2=\frac{\omega _2}{2\pi }$

$N_2=\frac{15\pi }{2\pi}=7.5 rev/s$

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4 years ago

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natulia [17]

Answer:

The answer is: wavelength

Explain:

Or crest

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3 years ago

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tigry1 [53]

The component that’s dissolved is called the solvent

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3 years ago

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A 50 kg box hangs from a rope. what is the tension in the rope if

MrRa [10]

Part a is simply mass*gravity. Tension=ma

Part b Tension= 50kg(10m/s+5.0m/s) = 750N

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4 years ago

A wave has a speed of 50 m/sec. If its frequency is 100 Hz,

Gre4nikov [31]

Wave speed= Frequency x Wavelength

-> Wavelength= Wave speed divide Frequency

-> 50m/s divide 100Hz= 0.5m

7 0

3 years ago