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Kamila [148]
3 years ago
10

You can tell when you are in an earthquake s shadow zone. a. True b. False

Physics
2 answers:
Verdich [7]3 years ago
5 0


your answer would be A. true


Sonbull [250]3 years ago
4 0

The correct answer is False

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The nucleus of a cell is like the ____ of a large animal.
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It is either the brain or the stomach.
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3 years ago
If a particle's position is given by x=4-12t+3t^2, where t is in seconds and x is in meters, what is its velocity at t=1 second?
andreyandreev [35.5K]

Answer:

v = -6m/s

Explanation:

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3 years ago
A 0.25-kg ball attached to a string is rotating in a horizontal circle of radius 0.5 m. If the ball revolves twice every second,
Aloiza [94]

Answer:

19.74 N

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mass of ball (m) = 0.25 kg

radius (r) = 0.5 m

time (t) = 2 revolutions per seconds = 1/2 = 0.5 second per revolution

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tension (T) = \frac{mv^{2} }{r}

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tension now becomes (T) = \frac{m}{r} x (\frac{2πr}{t})^{2}

tension (T) = \frac{4π^{2}rm }{t^{2} }

  • now substituting the values of mass (m), time (t) and radius (r) into the equation above we have

tension (T) = \frac{4π^{2}x0.5x0.25}{0.5^{2} }

tension (T) =  2π^{2} =   2x3.142^{2} = 19.74 N

4 0
3 years ago
How do you calculate the volume and density of something that weighs 20 grams?
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i believe that's the answer.
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4 years ago
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Answer:

The energy of a photon is directly proportional to it's frequency

8 0
3 years ago
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