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3 years ago

Why isn't solar energy usually the only power source for a region

1 answer:

6 0

bc it isnt enough take disney for example roughly 50 miles of solar panels (yes they are in the shape of a mickey head) only powers two parks ( animal kingdom, epcot, magic kingdom etc. etc.)

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Please help me with homework

Stells [14]

<h3><u>Answer;</u></h3>

= 64 N/m

<h3><u>Explanation</u>;</h3>

According to Hooke's Law for a helical spring or an elastic material, extensional force is directly proportional to the distance the material has extended.

F = ke; where F is the extension force, k is the spring constant, and e is the distance extended.

Thus;

k = F/e

= 44N/0.69 m

= 63.768 N/m

<u>= 64 N/m</u>

8 0

3 years ago

A main difference between gravitational and electric forces is that electrical forcesA. attract. B. repel or attract. C. obey th

Nadusha1986 [10]

Answer is :

repel or attract- B.

6 0

4 years ago

Everything in or on water pushes some water aside, even if it's just a little bit.

makvit [3.9K]

Answer:

This is called displacement.

Everything in or on water pushes some water aside, even if it’s just a little bit. This is called displacement.

8 0

4 years ago

Read 2 more answers

How much force is needed to accelerate a 68 kilogram skier at a rate of 1.2m/sec

xxMikexx [17]

Let's use Newton's 2nd law of motion:

Force = (mass) x (acceleration)

Force = (68 kg) x (1.2 m/s²) = 81.6 newtons .

8 0

3 years ago

Read 2 more answers

48 You are given two amplifiers, A and B, to connect in cascade between a 10-mV, 100-k source and a 100- load. The amplifiers ha

Sedbober [7]

Answer:

SABL

Explanation:

The best amplifier will be the one that gives us a bigger gain. In each stage will be a load factor that will reduce the gain, that is defined as:

$Fp=\frac{R_{in}}{R_{in}+R_{out}}\\$

where Rin is the input resistance of the next stage and Rout the output resistance of the previous stage.

Analyzing SABL:

$Fp_1=\frac{100K}{100K+100K}=0.5\\\\Fp_2=\frac{10K}{10K+10K}=0.5\\\\Fp_3=\frac{100}{100+1K}=0.0909$

the total gain will be the total gain of each stage multiplied by the load factor.

$SABL_{gain}=0.5*100*0.5*10*0.0909\\SABL_{gain}=22.73\\SABL_{gain_{db}}=20*\log{22.73}=27.13db$

Analyzing SBAL:

$Fp_1=\frac{10K}{10K+100K}=0.0909\\\\Fp_2=\frac{100K}{100K+10K}=0.909\\\\Fp_3=\frac{100}{100+10K}=0.0099$

the total gain will be the total gain of each stage multiplied by the load factor.

$SABL_{gain}=0.0909*10*0.99*100*0.0099\\SABL_{gain}=0.89\\SABL_{gain_{db}}=20*\log{0.89}=-1.01db$

So the best amplifier arrangement is SABL.

4 0

3 years ago

Why isn't solar energy usually the only power source for a region​

Why isn't solar energy usually the only power source for a region