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san4es73 [151]
4 years ago
12

A car with a leftward velocity and a rightward acceleration is

Physics
1 answer:
stealth61 [152]4 years ago
3 0

A car with leftward velocity and a rightward acceleration will move left and slowing down. Because whenever a car moves in a specific direction, then by applying an opposite acceleration or brakes won’t make its direction spontaneously in the direction of applied brakes or acceleration, but it will first slow down the car, and then make it stop due to applied brakes and then moves it in the direction of applied acceleration.  

<span>So option “B” is correct. </span>

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CFCs, carbon dioxide, green house gases and it's effects are responsible for the hole in ozone layer.
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A hammer taps on the end of a 4.10-m-long metal bar at room temperature. A microphone at the other end of the bar picks up two p
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Answer:

Speed of sound inside metal is ≅ 8200 \frac{m}{s}

Explanation:

Given :

Length of metal bar x = 4.10 m

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For finding time from above equation,

  t = \frac{x}{v}

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t = 0.01166 sec

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4 0
3 years ago
An object moves 20 m east in 30 s and then returns to its starting point taking an additional 50 s. If west is chosen as the pos
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The sign associated with the average velocity of the object is negative.

<h3>Average velocity of the object</h3>

The average velocity of the object is calculated as follows;

Average velocity = (v1 + v2)/2

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Average velocity = (-0.667 + 0.4)/2

Average velocity  = -0.134 m/s

Thus, the sign associated with the average velocity of the object is negative.

Learn more about average velocity here: brainly.com/question/6504879

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The distance from a crest to a trough is called the wave length
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Answer:

Explanation:

The highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height. The horizontal distance between two adjacent crests or troughs is known as the wavelength.

I hope it's helpful!

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