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BaLLatris [955]
3 years ago
9

A lightbulb has a fixed negative and positive connector. You cannot swap positive and negative sides of a lightbulb in a circuit

. true or false
Engineering
2 answers:
Andru [333]3 years ago
6 0
False. happy to help :)
Brums [2.3K]3 years ago
5 0
The answer would be false
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attached below

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I think will help
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3 years ago
I have a 308 bullet stuck in my ak,s mag help?
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3 years ago
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The temperature at the bottom of a reservoir is TL = 280 K and the surface temperature is TH = 295 K. This temperature differenc
Tanzania [10]

a) For the thermal efficiency we have

\eta_{th} = \frac{Q_{out}}{Q_{in}} = \frac{|W|}{|Q_h|}\\\eta_{th} = \frac{|W|}{|W|+|Q_2|}

With the previously values we know that

W=8kW and Q_L = 1440/6kW (convert the min to sec)

Replacing the values

\eta_{th}=\frac{8}{8+1440/6}=\frac{1}{31}\\\eta_{th}\% = 3.225\%

b) We use the formula of carnot efficiency

\eta_{th}=1-\frac{T_l}{T_h}\\\eta_{th}\% =(1-\frac{280}{295})*100\\\eta_{th}\%=5.085\%

**Note that apply the formula of carnot cycle we need to consider that there is no exchange of heat, there is no friction and the reservior are completely insulated

8 0
3 years ago
Name three types of large motor vehicles with which you might share the roadway. Explain how you can reduce risk when interactin
alexdok [17]

Answer:

rucks, buses, RVs, trolleys

Explanation:

What are some different types of vehicles that we share the road with?

Driving is a complex task, and for safe driving you need to know not just the rules of sharing the road with other cars, but with variety of other types of vehicles: trucks, buses, RVs, trolleys, motorcycles, bicycles and of course pedestrians.

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2 years ago
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