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mr_godi [17]
3 years ago
7

When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air,

turning it into a conducting plasma that reflects the laser light. In dry air at 0°C and 1 atm, electric breakdown occurs for fields with amplitudes above about 3.00 MV/m.
(a) What laser beam intensity will produce such a field?
W/m2

(b) At this maximum intensity, what power can be delivered in a cylindrical beam of diameter 3.44 mm?
W

Physics
1 answer:
Marianna [84]3 years ago
4 0

Find the below attachment

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A motorcycle and its driver has a mass of 145 kg. Answer the following questions about it, using correct units.
inysia [295]

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4 0
3 years ago
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Estimate the power you produce in running up a flight of stairs. Give your answer in horsepower (1 hp = 746 W). Suppose you clim
GarryVolchara [31]
The first thing you should do is calculate the work done when climbing the stairs. This work by definition will be given by:
 W = F * d
 W = (m * g) * (d)
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 Then, you can calculate the power that in this case is given by
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 answer
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3 0
3 years ago
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