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coldgirl [10]
3 years ago
12

A 62 kg skydiver moving at terminal speed falls 50 m in 1 s. What power is the skydiver expending on the air?

Physics
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer:

P = 30380 W

Explanation:

given,

mass of the skydiver, m = 62 Kg

distance, s = 50 m

time, t = 1 s

we know,

Power= \dfrac{work\ done}{time}

Power= \dfrac{F.s}{t}

F = m g

Power= \dfrac{m g.s}{t}

inserting all the values

P = \dfrac{62\times 9.8\times 50}{1}

P = 30380 W

hence, Power the skydiver expending on the air is 30380 W

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Answer with Explanation:

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\phi=BA

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A temperature of 200 degrees F is equivalent to approximately
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(1) Changing Fahrenheit to Celsius:
The formula used to convert from Fahrenheit to Celsius is as follows:
C = <span>(F - 32) * 5/9
</span>We are given that F=200, substitute in the above formula to get the corresponding temperature in Celsius as follows:
C = (200-32) * (5/9) = 93.333334 degrees Celsius

(2) Changing the Fahrenheit to kelvin:
The formula used to convert from Fahrenheit to kelvin is as follows:
K = <span>(F - 32) * 5/9 + 273.15
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What is the intensity of a sound with a measured intensity level of 84 db? (i0 = 10-12 w/m2)?
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The unit measurement for sound can be expressed in terms of intensity and in decibels. The intensity of sound is the measure of its power over unit area. The common unit of measurement is in decibels. This is commonly used in measuring the extent of noise. The conversion from intensity to the decibel unit is through logarithmic function. The formula is:

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In scientific notation the intensity is 2.512 x 10^-4 W/m^2.
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