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ICE Princess25 [194]
3 years ago
7

Label the sound wave-   amplitude, wavelength,  crest, trough​

Physics
1 answer:
enot [183]3 years ago
7 0

Answer:

A - Crest,  B - amplitude,  C - wavelength,  D - trough

Explanation:

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A driver in a car,originally moving 12.2 m/s, applies the brakes until the car comes to a stop. The car moves a distance of 36.5
mojhsa [17]

First we have to calculate the acceleration of the car,

a =\frac{u-v}{t}

Here, u is initial velocity of the car and its value is given 12.2 m/s and v is final velocity of the car and it comes to stop, so its value zero.

a=\frac{0-12.2 m/s}{t} =\frac{-12.2 \ m/s}{t}.

As during the braking the acceleration is constant, from the kinematic equation,

s=ut + \frac{1}{2} a t^2

Here, s is the distance traveled by the car during braking and its value is given 36. 5 m.

Substituting all the values in kinematic equation, we get

36.5 m =(12.2 m/s) t + \frac{1}{2} (- \frac{12.2 m/s}{t}) t^2 \\\\ 36.5 \ m = (12.2 \ m/s) t -(6.1 \ m/s) t \\\\\ t = \frac{36.5 m}{6.1 m/s} = 5.98 s

Therefore, car will stop after 5.98 s.


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3 years ago
As a capacitor is being charged, current flowing into the capacitor will?
Usimov [2.4K]

Answer:

the curring flowing into the capracitor will  get "stuck" on the plates because they can't get past the insulating dielectric.

Explanation:

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3 years ago
Which tools would sara us to find an irregularly shaped objects mass and volume A. a meter stick , a ruler , and water
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I think it's D. Usually, to find the volume of an irregularly shaped object, you put it in water with a labeled beaker to measure how much the water rises. The balance would be used to measure the mass in grams.
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A velocity vs. time graph starts at 0 and ends at 10 m/s, stretching over a time- span of 15 s with constant acceleration. What
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A rollercoaster accelerates from 10 m/s to 100 m/s2 for 25 seconds. What is the acceleration?
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A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration? Q. Acceleration only takes place when things speed up. Q. A drag racer accelerated from 0 m/s to 200 m/s in 5 s.

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