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Sholpan [36]
3 years ago
15

At what efficiency is a photovoltaic array running if insolation on the collector is 650 W/m2, the total collector area is 10 m2

, the voltage across the array is 50 V, and the current being delivered is 15 A
Physics
1 answer:
expeople1 [14]3 years ago
5 0

Answer: 11.53 %

Explanation:

Given

area A=10\ m^2

Voltage V=50 V

current I=15 A

Array running at 650\ W/m^2

Power  P=VI=50\times 15=750\ W

Efficiency \eta=\frac{750}{650\times 10}\times 100=11.53\%

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Consider the two moving boxcars in Example 5. Car 1 has a mass of m1 = 65000 kg and a velocity of v01 = +0.80 m/s. Car 2 has a m
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Answer:

1.034m/s

Explanation:

We define the two moments to develop the problem. The first before the collision will be determined by the center of velocity mass, while the second by the momentum preservation. Our values are given by,

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Substituting,

V_{cm} = \frac{(65000*0.8)+(92000*1.2)}{92000+65000}

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Part B)

For the Part B we need to apply conserving momentum equation, this formula is given by,

m_1v_1+m_2v_2 = (m_1+m_2)v_f

Where here v_f is the velocity after the collision.

v_f = \frac{m_1v_1+m_2v_2}{m_1+m_2}

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