3 years ago

6. Rock Ais thrown horizontally off a cliff with a velocity of 15 m/s. The rock lands 75m from

Physics

1 answer:

Harman [31]3 years ago

3 0

Answer:

5 seconds

Explanation:

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Friction is a surface force that opposes relative motion.

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$\\ \bull\sf\dashrightarrow F=ma$

$\\ \bull\sf\dashrightarrow a=\dfrac{F}{m}$

Now

$\\ \bull\sf\dashrightarrow a\propto\dfrac{1}{m}$

$\\ \bull\sf\dashrightarrow a\propto F$

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2 years ago

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Some types of electromagnetic waves, like radio waves, microwaves, infrared waves, visible light and ultraviolet waves, can be reflectedSome types of electromagnetic waves, like radio waves, microwaves, infrared waves, visible light and ultraviolet waves, can be reflected

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3 years ago

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Greeley [361]

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The efficiency is 0.33, or 33%.

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From the thermodynamics equations, we know that the formula for the efficiency of a heat engine is:

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