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posledela
3 years ago
6

What do wind energy, hydro-energy, and fossil fuel energy have in common?

Physics
1 answer:
MAVERICK [17]3 years ago
7 0

Answer:

Fossil fuels store energy from the sun as

Explanation:

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A tank is shaped like an upside-down square pyramid, with a base with sides that are 4 meters in length and a height of 12 meter
xeze [42]
Hello!

I included a link that might help you in terms of how the problem is broken down.

https://www.slader.com/discussion/question/a-tank-is-shaped-like-an-upside-down-square-pyramid-with-base-of-4m-by-4m-and-a-height-of-12m-how-fa/

However, the answer is:

The height increases at 3/2 m/sec
4 0
4 years ago
Migratory birds are able to use the earth's magnetic field to navigate even when clouds and darkness prevent them from having vi
stealth61 [152]

Answer:

The receptors that sense the Earth's magnetic field are probably located in the birds' eyes. Now, researchers at Lund University have studied different proteins in the eyes of zebra finches and discovered that one of them differs from the others: only the Cry4 protein maintains a constant level throughout the day and in different lighting conditions

Explanation:

4 0
3 years ago
Which wavelengths of light drive the highest rates of photosynthesis?
wariber [46]

Answer:

400-450 nm and 670-680 nm

Explanation:

Which wavelengths of light drive the highest rates of photosynthesis?

400-450 nm and 670-680 nm

Light in the violet-blue and red portions of the spectrum is most effective in driving photosynthesis

photosynthesis is the process through which green plant manufacture there food through sunlight, they synthesize nutrient in the this process through chlorophyll thereby releasing oxygen as a bye-product. a spectrum contains 7 colours combined . the violet-blue and red portions of the spectrum is most effective

3 0
4 years ago
A 97.6-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk =
Mila [183]

Answer:

v=6.65m/sec

Explanation:

From the Question we are told that:

Mass m=97.6

Coefficient of kinetic friction  \mu k=0.555

Generally the equation for Frictional force is mathematically given by

 F=\mu mg

 F=0.555*97.6*9.8

 F=531.388N

Generally the  Newton's equation for Acceleration due to Friction force is mathematically given by

 a_f=-\mu g

 a_f=-0.555 *9.81

 a_f=-54455m/sec^2

Therefore

 v=u-at

 v=0+5.45*1.22

 v=6.65m/sec

4 0
3 years ago
A student sets a board to pivot about its center. The student then places a box with mass m at some position r from the pivot po
kvv77 [185]

Answer:

The box should be placed at a distance of \frac{r}{2} from the pivot

Explanation:

In order to be in static equilibrium, both Torques have to be the same magnitude, so:

T_{m} = T_{2m}   Replacing the formula for Torque:

m*r = 2m*X   where X is the distance we need to find.

Solving for X we get:

X = \frac{r}{2}

As we can see, the distance does not depend on the actual value of the mass but on the fact of one being twice as much as the other one.

7 0
4 years ago
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