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Vedmedyk [2.9K]
4 years ago
14

I need help. What is the correct answer A or B or C or D?

Physics
1 answer:
svet-max [94.6K]4 years ago
3 0

Try grabbing a thin square material that would float normally. Try poking holes in it like shown in the examples. You will find your answer there! (Paper might work as long as the paper can handle water.)

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If the velocity of a body changes from 13 m/s to 30 m/s while undergoing constant acceleration, what's the average velocity of t
Ronch [10]

Since the acceleration is constant, the average velocity is simply the average of the initial and final velocities of the body:

v_{avg} = \frac{v_f+v_i}{2}=\frac{30 m/s+13 m/s}{2}=21.5 m/s

We can proof that the distance covered by the body moving at constant average velocity v_{avg} is equal to the distance covered by the body moving at constant acceleration a:

- body moving at constant velocity v_{avg}: distance is given by

S=v_{avg}t = \frac{v_f+v_i}{2}t

- body moving at constant acceleration a=\frac{v_f-v_i}{t}: distance is given by

S=v_i t+ \frac{1}{2}at^2 = v_i t + \frac{1}{2}\frac{v_f-v_i}{t}t^2=(v_i+\frac{1}{2}(v_f-v_i))t=\frac{v_f+v_i}{2}t

7 0
3 years ago
Read 2 more answers
How do bubbles form in water​
Katen [24]

Answer:

I'm pretty sure it has something to do with air

Explanation:

4 0
3 years ago
in a lab, resonance tubes are used to determine experimentally the speed of sound. using the data given, evaluate the best appro
jek_recluse [69]

The approximate speed of sound is about 761 mph or 335.28 meters/second.

<h3>What's the approximate speed of sound?</h3>

If we consider the normal atmosphere at sea level, the speed of sound is about 761 mph or 335.28 meters/second. The speed of sound is different in different mediums such as solid and liquid.

So we can conclude that the approximate speed of sound is about 761 mph or 335.28 meters/second.

Learn more about speed here: brainly.com/question/4931057

#SPJ1

3 0
2 years ago
The length of a rectangle is four times its width. The perimeter of the rectangle is at most 130 cm. Which inequality models the
leva [86]
The answer would be the one where the left side is less than or equal to 130 because 130 has to be the greatest value and the value of the w's cannot exceed 130, but they can equal it
4 0
3 years ago
A 60 kg gorilla named Anthony Falcon is standing on his skateboard. This is on planet Erf,
djyliett [7]
F= ma
F= (600/-10) -10
F= 580n

At least I think that’s the answer
4 0
3 years ago
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