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natali 33 [55]
3 years ago
6

What is the speed of a car that has traveled 100 miles in 20 hours? |

Chemistry
2 answers:
JulsSmile [24]3 years ago
4 0

Answer:2

Explanation:

77julia77 [94]3 years ago
3 0

Answer:

5 mph

Explanation:

100 miles, 20 hours (divide by 2)

50 miles,    10 hours (divide by 2)

25 miles,    5 hours (divide by 2)

divide both sides by 5

5 miles,     1 hour

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Answer:

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Explanation:

using the Stephan-Boltzmann equation for black bodies

q = σ*(T⁴-T₀⁴)

where

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solving for T

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T = (q/σ + T₀⁴)^(1/4)

replacing values

T = (q/σ + T₀⁴)^(1/4) = (255 W/m²/(5.67*10⁻⁸ W/m²K⁴) + (255 K)⁴)^(1/4) = 305.63 K

T=305.63 K

thus the final temperature is T=305.63 K

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