3 years ago

A mass accelerates uniformly when the resultant force on it is ?

Physics

1 answer:

Verizon [17]3 years ago

4 0

You want 'unbalanced', but 'not zero' is better.

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How long is an open-open pipe if the fundamebntal frequency is 60Hz. (Hint: Speed of Sound in the Air is 340m/s)

kifflom [539]

Fundamental frequency, f1=v/2l

Let the length of the pipe be ‘l’

By given: v=340m/s, f1=60Hz

Thus, 60=340/2l

60=170/l

l=170/60=17/6=2.8333

The length of the pipe is 17/3=2.8333m.

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3 years ago

How much work is done when a book weighing 2.0 newtons is carried at constant velocity from one classroom to another classroom 2

san4es73 [151]

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3 years ago

b) The depth of a wrecked ship is 1000 m below sea level. A ship transmits a wave of frequency 50 kHz and receives an echo 2.4 s

alexandr402 [8]

The speed of the wave in water is 833.33 m/s

The given parameters;

depth of the wrecked ship, d = 1000 m

frequency of the wave transmitted, f = 50 kHz

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The speed of the wave in water is calculated by applying echo equation as shown below;

$2d = velocity \times time\\\\velocity = \frac{2d}{time} \\\\velocity = \frac{2\times 1000 \ m}{2.4} \\\\velocity = 833.33 \ m/s$

Thus, the speed of the wave in water is 833.33 m/s

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3 years ago

Which type of magma is known for the most violent eruptions?

Anni [7]

Answer: B. Rhyolitic

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