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Serga [27]
3 years ago
7

sunlight, wind, and running water are essentially "free." Yet renewable energy sources are a very small part of our energy consu

mption. Why is this?
Physics
2 answers:
dimulka [17.4K]3 years ago
7 0
The heat and energy of coal burning is more easier and more efficient to turn into electricity than any method using renewable resources. 
lilavasa [31]3 years ago
4 0

Explanation:

oop hello UwU OwO

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What would happen to the amount of matter on earth if mass were not conserved during changes of state?
attashe74 [19]
<span>earth would be thrown off its balance and nature would be in danger of too many resources and not enough resources </span>
4 0
3 years ago
Read 2 more answers
A wave With wavelength 20 m has a frequency of 12 Hz what is the waves speed
pentagon [3]

Answer:

240m/s

Explanation:

The equation to calculate is wavelength= velocity/ frequency so to find the velocity you would have to multiply frequency by wavelength.

7 0
3 years ago
How does friction affect the distance of an object?
stiv31 [10]
It slows the object down so it cannot move well and evetually the object cannot be pushed and farther
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3 years ago
An ion accelerated through a potential difference of 115 V experiences an increase in kinetic energy of 7.37 x 1017 J. Calculate
riadik2000 [5.3K]

Answer: 6.408(10)^{-19} C

Explanation:

This problem can be solved by the following equation:

\Delta K=q V

Where:

\Delta K=7.37(10)^{-17} J is the change in kinetic energy

V=115 V is the electric potential difference

q is the electric charge

Finding q:

q=\frac{\Delta K}{V}

q=\frac{7.37(10)^{-17} J}{115 V}

Finally:

q=6.408(10)^{-19} C

4 0
3 years ago
The imaginary line from the tip of the football to the football to the sideline is called
pentagon [3]
The imaginary line from the tip of the football to the football to the sideline is called Line of Scrimmage. I believe.
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