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3 years ago

6

when a car is going downhill, the driver must apply more pressure on the brakes to stop than if the car were on level ground. wh

y?

1 answer:

alekssr [168]3 years ago

7 0

Elevation makes gravity pull harder

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In water, compounds that releases __________ ions are known as _________

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Answer:

hydrogen,Acids

Explanation:

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3 years ago

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2Fe + 3C02<br> 3CO + Fe2O3<br> AH = -24.7 kJ<br> Is the reaction exothermic or endothermic?

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3 years ago

Calculate the inner diameter of the steam tube between the boiler and the high pressure turbine if the average velocity of the s

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Answer:

The inner diameter of the steam tube is 0.1185 m.

Explanation:

$m=\rho \times A\times v=\frac{1}{V}\times A\times v$

m = mass flow rate

$\rho$ = density of the liquid

V=specific volume = $\frac{1}{\rho }$

v = velocity of the liquid

A = area of cross-section

Diameter of the cross-section = d = 2r

Given: m = 18 kg/s, v = 60 m/s,A=?, $V = 0.036793 m^3/kg$

$18 kg/s=\frac{1}{0.036793 m^3/kg}\times A\times 60 m/s$

$A=0.0110379 m^2$

Area of the inner cross section = $\pi r^2=\pi \frac{d^2}{4}$

$\pi \frac{d^2}{4}=0.0110379 m^2$

d = 0.1185 m

The inner diameter of the steam tube is 0.1185 m.

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4 years ago

Which metal most likely conducts electricity best? aluminum copper

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