3 years ago

Looking for some help with this :)

1 answer:

5 0

So the ting goes sssskkkkkkrrrrrrrraaaaaaa papakakaka skidiki pop pop and a Pom Pom pppddddrrrr pooom big Shaq mans not hot

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How i can change my bad habits and one is i always trust peopñe

Lelu [443]

what? I guess:

practice different habits. If you fail don't give up.
don't always trust people, some are not what they seem.

this question doesn't make any sense...

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3 years ago

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A heat engine has a maximum possible efficiency of 0.780. If it operates between a deep lake with a constant temperature of-24.8

Volgvan

Answer : The temperature of the hot reservoir (in Kelvins) is 1128.18 K

Explanation :

Efficiency of carnot heat engine : It is the ratio of work done by the system to the system to the amount of heat transferred to the system at the higher temperature.

Formula used for efficiency of the heat engine.

$\eta =1-\frac{T_c}{T_h}$

where,

$\eta$ = efficiency = 0.780

$T_h$ = Temperature of hot reservoir = ?

$T_c$ = Temperature of cold reservoir = $-24.8^oC=273+(-24.8)=248.2K$

Now put all the given values in the above expression, we get:

$\eta =1-\frac{T_c}{T_h}$

$0.780=1-\frac{248.2K}{T_h}$

$T_h=1128.18K$

Therefore, the temperature of the hot reservoir (in Kelvins) is 1128.18 K

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3 years ago

Select three possible applications of a capacitor. Select all that apply.

Wittaler [7]

Answer:

I'm pretty sure it's all of them i'm not completely sure though hope it helps anyways! :)

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3 years ago

A small charged sphere is attached to a thread and placed in an electric field. The other end of the thread is anchored so that

VMariaS [17]

Answer:

$E = 9.66\times 10^{-6} N/C$

direction is Horizontal

Explanation:

As we know that the string is horizontal here

so the tension force in the string is due to electrostatic force on it

now we will have

$F = qE$

so here the force is tension force on it

$F = 6.57 \times 10^{-2} N$

$Q = 6.80 \times 10^3 C$

now we have

$6.57 \times 10^{-2} = (6.80 \times 10^3)E$

$E = 9.66\times 10^{-6} N/C$

direction is Horizontal

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3 years ago

Plastics are used in millions of objects we use every day. Why are plastics NOT considered natural resources?

jeka57 [31]

Answer:

Explanation:

Yes plastic is artficial

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3 years ago

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