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True [87]
3 years ago
12

3- A car was traveled 110 meters in 5.5 seconds. What was the car's velocity?*

Physics
2 answers:
Tatiana [17]3 years ago
7 0

<u>Answer</u>:

20 m/s

<u>Explanation</u>:

* velocity = distance / time *

velocity  =  110 / 5.5

velocity =  20 m/s

xxMikexx [17]3 years ago
7 0

Answer:

V= 20m/s

Explanation:

velocity= distance/time

V= d/s

= 110m/5.5 seconds

= 20m/s

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Answer:

3.13 m/s

Explanation:

From the question,

Since the flea spring started from rest,

Ek = W................... Equation 1

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But,

Ek = 1/2mv²............ Equation 2

Where m = mass of the flea spring, v = flea's speed when it leaves the ground.

substitute equation 2 into equation 1

1/2mv² = W.................... Equation 3

make v the subject of the equation

v = √(2W/m)................. Equation 4

Given: W = 3.6×10⁻⁴ J, m = 2.3×10⁻⁴ kg

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3 years ago
Susan gently pushes the tip of her finger against the eraser on her pencil and the pencil does not move. Which of the
pochemuha

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6 0
2 years ago
А A pool of water of refractive index
babymother [125]

Answer:

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Explanation:

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We need to find its apparent  depth when viewed vertically through  air.​ The ratio of real depth to the apparent depth is equal to the refractive index of the material. Let the apparent depth is d'. So,

n=\dfrac{d}{d'}\\\\d'=\dfrac{d}{n}\\\\d'=\dfrac{60}{\dfrac{4}{3}}\\\\d'=45\ cm

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Explanation:

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2 years ago
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dmitriy555 [2]

The frequency of the wave is 6800 Hz

<u>Explanation:</u>

Given:

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we know:

wave number = \frac{frequency}{speed of light}

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Therefore, the frequency of the wave is 6800 Hz

4 0
3 years ago
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