4 years ago

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.

You might be interested in

Need help before 10pm tomorrow night

konstantin123 [22]

The first one is A and the second one would be C

5 0

3 years ago

Would a vibrating proton produce an electromagnetic wave

Anon25 [30]

Answer:

No,

Explanation:

An electromagnetic wave is made of vibrating electric and magnetic fields that continually induce each other; matter is not needed for this to occur.

5 0

4 years ago

Describe and explain the motion of a small ball floating on a pond when waves travel across the pond

laila [671]

I think the answer is periodic motion.

4 0

3 years ago

You're driving your new sports car at 85 mph over the top of a hill that has a radius of curvature of 525 m.

Bumek [7]

Explanation:

It is given that,

Speed of the sports car, v = 85 mph = 37.99 m/s

The radius of curvature, r = 525 m

Let $W_N$ is the normal weight and $W_A$ is the apparent weight of the person. Its apparent weight is given by :

$W_A=mg-\dfrac{mv^2}{r}$

So, $\dfrac{W_A}{W_N}=\dfrac{mg-\dfrac{mv^2}{r}}{mg}$

$\dfrac{W_A}{W_N}=\dfrac{g-\dfrac{v^2}{r}}{g}$

$\dfrac{W_A}{W_N}=\dfrac{9.8-\dfrac{(37.99)^2}{525}}{9.8}$

$\dfrac{W_A}{W_N}=0.719$

$\dfrac{W_A}{W_N}=71.9\%$

Hence, this is the required solution.

5 0

4 years ago

Please help,,, question on image

MA_775_DIABLO [31]

Answer:

first you have to

Explanation:

3 0

3 years ago