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Marat540 [252]
3 years ago
15

A sailfish swims 120 km/hr. How far will it travel in 8.0 minutes?

Physics
1 answer:
Rasek [7]3 years ago
5 0

Answer:

16km

Explanation:

First change the minutes into hours then multiply by the distance.

(8÷60)×120=16km

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what would you expect to happen to the acceleration if all friction were removed from the ramp, making the net force even higher
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Answer:

Increase

Explanation:

The acceleration will increase more if all the friction were removed from ramp.

Acceleration is the rate of change of velocity with time.

Frictional force is a force that opposes motion of a body.

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3 years ago
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As a bat flies toward a wall at a speed of 6.0 m/s, the bat emits an ultrasonic sound wave with frequency 30.0 kHz. What frequen
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Answer:

f_b = 29.98 Hz

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speed of bat = 6 m/s

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as we know,

speed of sound (c)= 343 m/s

f_w = f(\dfrac{c+v_r}{c+v_s})

f_w = 30(\dfrac{343+0}{343+6})

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now frequency received by bat is equal to  

f_b = f(\dfrac{c+v_r}{c+v_s})

f_b = 29.48(\dfrac{343+6}{343+0})

f_b = 29.98 Hz

hence the frequency hear by bat will be 29.98 Hz

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A differnece in electric potential is required for an electric charge to flow through a wire.
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TRUE

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