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mamaluj [8]
2 years ago
7

A ball is thrown horizontally from the top of a building 0.10 km high. The ball strikes the ground at a point 78 m horizontally

away from and below the point of release. What is the speed of the ball just before it strikes the ground
Physics
1 answer:
sertanlavr [38]2 years ago
5 0

Answer:

Error

Explanation:

Speed= Distance / Time

Speed = 0.1

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amm1812

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3 0
3 years ago
estimate the force that a cyclist travelling at 6m/s needs to apply to the brakes to bring the bicycle to a stop in a distance o
RSB [31]

v1 = 6m/s

v2 = 0

∆v = v1 - v2 = 6m\s

s = t * v = 15m

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a = ∆v\t = 6(m\s) \ 2.5s = 2.4m\s2

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F = a * m = 2.4m\s2 * ?kg

I can't tell you this because I don't know the mass of this cyclist

4 0
3 years ago
A sound wave is an example of an electromagnetic wave in nature. true or false?
Natasha2012 [34]
False. A sound wave is an example of a mechanical wave, not an EM wave.

Hope this helps! :)
5 0
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Ludmilka [50]

Answer:

option B

Explanation:

The correct answer is option B

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examples of comets are  Halley's Comet, Comet Encke.

The orbit of comets is entirely beyond the orbit of Neptune.

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