What's so great about solar energy systems?

1 answer:

4 0

Solar energy is a good alternative to replace fossil fuel as the major energy source because solar power is renewable at absolutely no cost to supply energy infinitely.

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A given wave has a wavelength of 1.4 m and a frequency of 2.0 Hz. How fast

stiks02 [169]

Answer:

The wave speed is 2.8 m.

Explanation:

Wavelength = 1.4 m

frequency, f = 2 Hz

the wave speed is given by

wave speed = wavelength x frequency

wave speed = 1.4 x 2 = 2.8 m

option (D) is correct.

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3 years ago

Calculate the value of 200°C in Kelvin

Elan Coil [88]

Answer:

473.15

Explanation:

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Remaining Time: 1 hour, 49 minutes, 34 seconds.

ohaa [14]

Explanation:

i think C . it is twice the size of the object

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An air mass that forms over Arizona and New Mexico will be?

vlada-n [284]

Continental Tropical Air Mass. Your welcome matey

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3 years ago

in loading a long lorry a man lifts boxes each of weight 100N and height of 1.5M.how much energy is transfered when one box is l

gizmo_the_mogwai [7]

Explanation:

energy=100×1.5=150 joules

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3 years ago