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erastovalidia [21]
2 years ago
6

Two planes fly in opposite directions. One travels 450 mi/h and the other flies 550 mi/h. How long will it take before they are

7,000 mi apart
Physics
1 answer:
Mariulka [41]2 years ago
6 0

Answer:

after about 7 hours

Explanation:

450 + 550 = 1000

7000 / 1000 = 7 h

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Hi, Solve for λ<br> E=hc/λ
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Answer:

λ=hc/E

Explanation:

E=hc/λ

Eλ=hc

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4 0
3 years ago
The number of waves that pass a given point in a second is___.
Kisachek [45]

Answer:

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The frequency ( ) of a wave is the number of waves passing a point in a certain time.

5 0
2 years ago
When a magnetic field is first turned on, the flux through a 20-turn loop varies with time according to Φm=5.0t2−2.0t, where Φm
goldfiish [28.3K]

Answer:

A) ( - 200t + 40 ) volts

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Explanation:

Given data:

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<u>a) determine induced emf </u>

E = - N \frac{d\beta }{dt}

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i) at t = 0

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ii) at t = 0.10

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iii) at t = 1

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iv) at t = 2

E = -400 + 40 =  - 360 ( clockwise direction )

8 0
2 years ago
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omeli [17]
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8 0
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zalisa [80]
I dont know from option
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7 0
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