What are the starting ingredients and products of photosynthesis and cellular respiration

Answers

Answer 1
Answer: Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

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How long does it take for the speed of light and sound to travel around the world

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-- Light travels straight, not around in a circle. But if it did, it would cover
a distance equal to the length of the equator in about 0.13 second.

-- At the speed of sound (in air at standard temperature and pressure),
it would take about 32.6 hours to cover the same distance.


In a food chain which are ‘ the most efficient users of solar energy

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The plants are the most efficient users because they use the most of it. After that about 90% of the energy gets used up whoever eats the next organism. 

Carla pushes a toy car and lets it go. The toy car rolls and gradually comes to a stop. What would make the car stop?A. A force must be applied to the car in the direction opposite to that in which it is moving.
B. A force must be applied pushing the car forward in the same direction as the moving car.
C. A force must be applied in a direction pushing the car upward to make the car stop.
D. A force must be applied in a direction pulling the car downward causing the car to stop.

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A is correct :) If you push up or down on a toy car it won't nessicarily stop. If you push it in the same direction, it will probably go faster. If you push it in the opposite direction, it will stop. (Or go backwards depending on how hard you push)
A is correct because this creates friction so the car stops.

If nothing is faster than light, how did the dark get there first?

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say you were in a dark room and you turned on a flashlight ..the darkness was already there to begin with. the flashlight would fill the room with the speed of light.

Why is saturn still giving off extra energy?Please help!!!!!!!!

Homework due tomorrow!

Last question!!!!!

Answers

There is not a "for sure" answer yet, but scientist thinks that it might be due to Saturn's cloud cover, if the cloud cover fluctuated, then Saturn would scatter infrared light differently, giving off more energy than it needs to. 

A sound wave is traveling at a speed of 330 m/s. If the frequency of the wave is 660 Hz, what is the wavelength of the sound wave?2 m
330 m
990 m
0.5 m

Answers

Answer:

The wavelength of the sound wave traveling at 330 m/s is 0.5 m.

Explanation:

Given:

Speed of sound wave is, v=330\ m/s

Frequency of the sound wave is, f=660\ Hz

Speed of a sound wave is related to its frequency and wavelength as:

v=f\lambda, where, \lambda is the wavelength.

Now, plug in 330 for v, 660 for f and solve for \lambda. This gives,

330=660\lambda\n\lambda=(330)/(660)=0.5\ m

Therefore, the wavelength of the sound wave traveling at 330 m/s is 0.5 m.