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almond37 [142]
3 years ago
14

Special relativity can be used to study an object in which frame of reference? A. A frame of reference that has no change in vel

ocity B. A frame of reference that is moving in a circle C. A frame of reference that has a constant, positive acceleration D. A frame of reference that has a constant, negative acceleratio
Physics
2 answers:
4vir4ik [10]3 years ago
5 0

Answer:

Explanation:d

Georgia [21]3 years ago
4 0

Answer:

gangster

Explanation:

sorrynsjajshdnqmanshsha

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A ball is thrown straight down with a speed of Va2.00 from a building 40.00 meters high. How much S time passes before the ball
-Dominant- [34]

Answer:

Option C is the correct answer.

Explanation:

Considering vertical motion of ball:-

Initial velocity, u =  2 m/s

Acceleration , a = 9.81 m/s²

Displacement, s = 40 m

We have equation of motion s= ut + 0.5 at²

Substituting

   s= ut + 0.5 at²

    40 = 2 x t + 0.5 x 9.81 x t²

   4.9t²  + 2t - 40 = 0

   t = 2.66 s   or t = -3.06 s

So, time is 2.66 s.

Option C is the correct answer.

6 0
3 years ago
two pulse waves a and b arrive at a point in a medium simustaneously. if the amplitude of wave a is 35 units the amplitude of wa
Shalnov [3]
It depends on the type of interference.
For constructive interference, add the amplitudes to get |35 + 41| = 76 units.
For destructive, subtract them |35 - 41| = 6 units
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3 years ago
What is the motion of the particles in this kind of wave? A hand holds the left end of a set of waves. The waves themselves make
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Answer:

The transverse wave

Explanation:

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3 years ago
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If John travels 2,387 miles in 2 days, what's his average speed per hour?
klasskru [66]
In 2 days there are 48 hours
to find the average speed per hour, divide 2,387 by 48
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The average speed is 50mph
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2 years ago
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