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elena-14-01-66 [18.8K]
3 years ago
7

The number of wavelengths that pass a point each per second is:

Physics
1 answer:
Lesechka [4]3 years ago
3 0

Explanation:

d frequency I learned it last year

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The average speed during any time interval is equal to the total distance of travel divided by the total time. Let d represent t
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Answer:

Average speed = 3.63 m/s

Explanation:

The average speed during any time interval is equal to the total distance travelled divided by the total time.

That is,

Average speed = distance/ time

Let d represent the distance between A and B.

Let t1 be the time for which she has the higher speed of 5.15 m/s. Therefore,

5.15 = d/t1.

Make d the subject of formula

d = 5.15t1

Let t2 represent the longer time for the return trip at 2.80 m/s . That is,

2.80 = d/t2.

Then the times are t1 = d/5.15 5 and

t2 = d/2.80.

The average speed vavg is given by the following equation.

avg speed = Total distance/Total time

Avg speed = d + d/t1 + t2

Where

Total distance = 2d

Total time = t1 + t2

Total time = d/5.15 + d/2.80

Total time = (2.8d + 5.15d)/14.42

Total time = 7.95d/14.42

Total time = 0.55d

Substitute total distance and time into the formula above.

Avg speed = 2d / 0.55d

Avg Speed = 3.63 m/s

7 0
3 years ago
The acceleration of an object is constant when its velocity is :
emmasim [6.3K]

Answer:

B. changing by a constant amount each second

Explanation:

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Earth's gravitational field is strongest at _______.
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Earth's gravity is stronger at the poles than the equator for two reasons: The centrifugal "force" cancels out the gravity minimally, more so at the equator than at the poles.
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What causes the particles within the nucleus of an atom to bond together? Question 12 options: electromagnetism gravity weak nuc
monitta

Answer:

Strong nuclear force

Explanation:

The particles in the atom's nucleus bond together because there is a strong nuclear force between the protons and neutrons that attracts them to each other and binds together the nucleus.

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Evaluate the scenarios and select the one that demonstrates the training principle overload.
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B :)

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:) JUST TRUST ME I GOT IT CORRECT

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