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kkurt [141]
3 years ago
11

True or False? All electromagnetic waves travel at the same speed through a vacuum.

Physics
1 answer:
LekaFEV [45]3 years ago
6 0

Answer:

false

Explanation:

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Which of the following is the best name for CaF2?
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Its just Calcium Flouride because as you can see it is an Ionic bond (Ca is  metal and fl is a gas usually)
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Which describes the characteristics of a liquid?
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The suspension cable of a 1,000 kg elevator snaps, sending the elevator moving downward through its shaft. The emergency brakes
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Answer:

option (E) 1,000,000 J

Explanation:

Given:

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Distance, h = 100 m

Now,

from the work energy theorem

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or

mgh = Work done by brake

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or

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or

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this work done is the release of heat in the brakes

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4 0
3 years ago
A velocity selector in a mass spectrometer uses an electric field of 4.4 x 105 V/m. What magnetic field strength (in Tesla) is n
Brut [27]

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  B = 9.16 10⁻²  T

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       B = E / v

Let's calculate

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