3 years ago

What does a photovoltaic cell do?

Physics

2 answers:

Pie3 years ago

8 0

Answer:

last option

Explanation:

photovoltaic cell is when the sun's energy will be converted to as electricity causing an effect to create light for houses

ruslelena [56]3 years ago

7 0

Answer:

answer is d.converts the sun’s energy into electricity

Explanation:

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4 years ago

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Find the total change in the internal energy of a gas that is subjected to the following two-step process. In the first step the

agasfer [191]

Answer:

U = 9253.6 J

Explanation:

It is given that,

Heat transferred in isochoric process, $Q_1=5560\ J$

Pressure in this process, $P_1=3.32\times 10^5\ Pa$

In the second step,

It is subjected to isobaric compression until its volume decreases by, $V=-7.3\times 10^{-3}\ m^3$ (it decreases)

Heat transferred out of the gas, $Q_2=1270\ J$

In isochoric process, work done by the gas is zero as in this type volume is constant, $W_1=0$

According to first law of thermodynamics,

$\Delta U=Q-W$

$\Delta U_1=5560\ J$ .............(1)

In isochoric compression, $W_2=P\Delta V$

$\Delta U_2=1270-3.32\times 10^5\times (-7.3\times 10^{-3})$

$\Delta U_2=3693.6\ J$

Let U is the total change in the internal energy of this gas. So,

$U=U_1+U_2$

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3 years ago

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yulyashka [42]

Answer:

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