Portland, Oregon is a good city for biking because of all the biking lanes, also there is not that many cars driving, people are mostly walking.<span />

3 0

3 years ago

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Name two things that can cause a short circuit in your home?

Dima020 [189]

Plugs exposed to liquid such as water; too many things plugged in at once

3 0

3 years ago

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If a 375 mL sample of water was cooled from 37.5 C to 0 C how much heat wad lost in joules

harkovskaia [24]

1 mL = 1 gram
Q=375*4.179*37.5

3 0

2 years ago

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When an airplane is flying 200 mph at 5000-ft altitude in a standard atmosphere, the air velocity at a certain point on the wing

Sedaia [141]

Answer:

P1 = 0 gage

P2 = 87.9 lb/ft³

Explanation:

Given data

Airplane flying = 200 mph = 293.33 ft/s

altitude height = 5000-ft

air velocity relative to the airplane = 273 mph = 400.4 ft/s

Solution

we know density at height 5000-ft is 2.04 × $10^{-3}$ slug/ft³

so here P1 + $\frac{\rho v1^2}{2}$ = P2 + $\frac{\rho v2^2}{2}$

and here

P1 = 0 gage

because P1 = atmospheric pressure

and so here put here value and we get

P1 + $\frac{\rho v1^2}{2}$ = P2 + $\frac{\rho v2^2}{2}$

0 + $\frac{2.048 \times 10^{-3} \times 293.33^2}{2}$ $= P2 + \frac{2.048 \times 10^{-3} \times 400.4^2}{2}$

solve it we get

P2 = 87.9 lb/ft³

5 0

2 years ago