The greatest obstacle to developing solar energy is _____. lack of sunlight at high latitudes lack of sunlight at night lack of mechanisms for storing solar energy large areas required to collect sufficient energy

Answers

Answer 1

Answer: The correct answer is option #4. The greatest obstacle to developing solar energy is large areas required to collect sufficient energy. Solar energy is the energy that is the sun is producing and being converted into thermal energy that can be used for everyone's daily lives.

Answer 2

Answer:

large areas required to collect sufficient energy

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Andrew drives to his friend's house, which is 60 miles to the east. After visiting, he travels 25 miles to the west to visit his grandparents. What is Andrew's displacement?

Answers

Andrew's displacement while visiting his grandparents is 35 miles to the east.

What is displacement?

The displacement is the shortest distance travelled by the particle. It is the vector quantity which represents both the magnitude and direction.

Given Andrew drives to his friend's house, which is 60 miles to the east. After visiting, he travels 25 miles to the west to visit his grandparents.

The displacement will be

60 miles to the east - 25 miles to the west = 35 miles to the east

Thus, the Andrew's displacement is 35 miles to the east.

Learn more about displacement.

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A few miles like 23 I’m thinking

If the contents of a cell have a solute concentration of 0.04 percent which of these solutions would cause it to swell? A.) 10-percent solute concentration B.) 1-percent solute concentration C.) 0.1 percent solute concentration D.) 0.01 percent solute concentration.

Answers

If the contents of a cell have a solute concentration of 0.04 percent, the solution that would cause it to swell is D) 0.01 percent solute concentration.

I need help on (a)
I don't know what equation to use?

Answers

Impulse = (force) x (length of time the force lasts)

I see where you doodled (60)(40) over on the side, and you'll be delighted
to know that you're on the right track !

Here's the mind-blower, which I'll bet you never thought of:
On a force-time graph, impulse (also change in momentum)
is just the area that's added under the graph during some time !

From zero to 60, the impulse is just the area of that right triangle
under the graph. The base of the triangle is 60 seconds. The
height of the triangle is 40N . The area of the triangle is not
the whole (base x height), but only 1/2 (base x height).

1/2 (base x height) = 1/2 (60s x 40N) = 1,200 newton-seconds

That's the impulse during the first 60 seconds. It's also the change in
the car's momentum during the first 60 seconds.

Momentum = (mass) x (speed)

If the car wasn't moving at all when the graph began, then its momentum is 1,200 newton-sec after 60 seconds. Through the convenience of the SI system of units, 1,200 newton-sec is exactly the same thing as 1,200 kg-m/s . The car's mass is 3 kg, so after 60 sec, you can write

Momentum = M x V = (3 kg) x (speed) = 1,200 kg-m/s

and the car's speed falls right out of that.

From 60to 120 sec, the change in momentum is the added area of that
extra right triangle on top ... it's 60sec wide and only 20N high. Calculate
its area, that's the additional impulse in the 2nd minute, which is also the
increase in momentum, and that'll give you the change in speed.

A standing wave has a frequency of 471 Hz and a wavelength of 1.9. What is the speed of thewave? (Round to the 2nd number after the decimal)
1
I REALLY NEED HELP !