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alukav5142 [94]
3 years ago
13

PLEASE HELP!! I'll mark brainliest for correct answer.

Physics
1 answer:
Tju [1.3M]3 years ago
6 0
1. Car A
2. Car C
3. Car A
4. 1500 J
5. 750 J
6. 750 J
7. Car A was had a height higher relative to the ground compared to all the other cars.
8. mgh
9. B
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A student combined equal amounts of two solutions one solution had a ph of 2 and the other had a ph 12 which would most likely b
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The answer would be 6.
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A car travels at a constant speed around a circular trackwhose
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Answer:

a = 0.77 m/s^2

Explanation:

The centripetal acceleration is given as

a = \frac{v^2}{R}

The velocity of the car can be calculated using the circumference of the track and the period of the car.

2\pi R = v T\\2\pi 2.6 = v 360\\v = 0.045 ~km/s = 45~m/s

So, the acceleration is

a = \frac{45^2}{2.6\times 10^3} = 0.77~m/s^2

8 0
4 years ago
which is true? light waves do not change speed as they travel from air through water. light waves speed up as they travel from t
Alex17521 [72]
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6 0
3 years ago
A rifle is aimed horizontally at a target 47 m away. The bullet hits the target 2.3 cm below the aim point.
inna [77]

Answer:

Is your question asking for the muzzle velocity of the bullet?

Explanation:

I will assume it does

The bullet travels horizontally to the target in the same amount of time it falls 2.3 cm from vertical rest

s = ½at²

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v = d/t = 47/0.0685118 = 686.01242...

v = 690 m/s

3 0
2 years ago
Object 1 has a mass of 3m and is moving to the right at a velocity of
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Answer:

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