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Minchanka [31]
3 years ago
11

A hot brass plate is having its upper surface cooled by impinging jet of air at temperature of 15°c and convection heat transfer

coefficient of 220 w/m2•k. the 10-cm thick brass plate (ρ = 8530 kg/m3, cp = 380 j/kg•k, k = 110 w/m•k, and α = 33.9×10–6 m2/s) has a uniform initial temperature of 700°c, and the bottom surface of the plate is insulated. determine the temperature at the center plane of the brass plate after 3 minutes of cooling. solve this problem using analytical one term approximation method (not the heisler charts).
Physics
1 answer:
Elodia [21]3 years ago
4 0
200 degrees because I need the points
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A bowling ball has a mass of 6 kg. What happens to its momentum when its speed increases from 2m/s to 4 m/s?
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Here, Initial momentum = mu = 6*2 = 12 Kg m/s
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In short, Your Answer would be Option C

Hope this helps!
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2 years ago
Pls help ASAP. This is astronomy but there isn't an option :)
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From largest to smallest they are: Universe, galaxy, solar system, star, planet, moon and asteroid.

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7 0
3 years ago
A surveyor is using a magnetic compass 5.6 m below a power line in which there is a steady current of 140 A. (a) What is the mag
ArbitrLikvidat [17]

Answer:

(a) B = 5.6 micro Tesla

Explanation:

Current in the wire, i = 140 A

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B = 5.6 x 10^-6 Tesla

B = 5.6 micro Tesla

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4 0
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mote1985 [20]

Answer:

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Explanation:

7 0
3 years ago
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