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vivado [14]
2 years ago
11

5. In a local bar, a customer slides an empty beer mug on the counter for a refill. The bartender does not see the mug, which sl

ides off the counter and strikes the floor 1.4 m from the base of the counter. If the height of the counter is 0.86 m,
(a) with what speed did the mug leave the counter
(b) what was the direction of the mug's velocity just before it hit the floor?​
Physics
1 answer:
pishuonlain [190]2 years ago
5 0

Answer:

sorry about this question

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3 years ago
What is the intensity in W/m2 of a laser beam used to burn away cancerous tissue that, when 85.0% absorbed, puts 470 J of energy
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Answer:

26036485.6433 W/m²

Explanation:

E= Energy = 470 J

t = Time = 4 seconds

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Power is given by

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Intensity is given by

I=\dfrac{P}{\pi r^2}\\\Rightarrow 0.85I=\dfrac{E}{t\dfrac{\pi}{4} d^2}\\\Rightarrow I=\dfrac{470}{0.85\times 4\times \dfrac{\pi}{4}\times (2.6\times 10^{-3})^2}\\\Rightarrow I=26036485.6433\ W/m^2

The intensity of the laser beam is 26036485.6433 W/m²

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Answer:

Explanation:

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Nothing else is written about it

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Which formation is one feature of karst topography?
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