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BaLLatris [955]
3 years ago
15

Chlorophyll is a plant pigment that absorbs all frequencies of light except for

Physics
1 answer:
Sergio [31]3 years ago
4 0
Green because it abssorbs other colors which is why grass is green. 
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A proton moves from a location where V = 87 V to a spot where V = -40 V. (a) What is the change in the proton's kinetic energy?
Art [367]

Answer: a) 127 eV; b) there is no change of kinetic energy.

Explanation: In order to explain this problem we have to use the change of potentail energy ( conservative field) is equal to changes in kinetic energy. So for the proton ther move to lower potential then they gain kinetic energy from the electric field.  This means the electric force do work in this trayectory and then the protons increased changes its speed.

If we replace the proton by a electron we have a very different situaction, the electrons are located in a lower potental then  they can not move to higher potential  if any  external force does work on the system.

In resumem, the electrons do not move from a point with V=87 to other point with V=-40 V. The electric force point to high potential so the electrons  can not move to lower potential region (V=-40V).

6 0
3 years ago
Change.
solniwko [45]

Option E, Fiat money includes currency, checking deposits and credit cards .

<u>Explanation: </u>

Fiat money has been the currency issued by the government which is not sponsored by actual resources like gold or silver, but by the country that approved it.

Instead of the price of a product, the valuation of fiat money is extracted from the connection between production and consumption and stability of the authorizing state. Fiat currencies, including that of the U.S. dollar, euro, and other major international currencies seem to be the most common paper currencies.

One risk for fiat money is to print too many of those by regimes that contribute to hyperinflation.

Fiat money is government-supported monetary money and is treated as a legal tender. The capital is provided by physical goods such as valuable metals or instruments including checks and credit cards. The world currencies, backed by gold, were symbolic until 1971.

7 0
2 years ago
What formula is used to find an objects acceleration
ololo11 [35]
Acceleration = velocity / time.


7 0
3 years ago
How does the voltage applied to the electric motor affect the coil's number of rotations and its rotational direction
sleet_krkn [62]
Higher voltage means faster rotation.  Changing the voltage polarity changes the direction of the motor.
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Which non-destructive technique is used for analyzing carpet fibers at a crime scene
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Mass spectrometry.....identifies dyes on nylon
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3 years ago
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