A generalized ____________ contains an antenna complex and a reaction center.

1 answer:

3 0

A generalized photosystem contains an antenna complex and a rection center. Photosystems are units of complexes of proteins that are used in photosynthesis that are responsible for absorption of light and movement of electrons and energy.

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When Jane drives to work, she always places her purse on the passenger’s seat. By the time she gets to work, her purse has falle

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When red light illuminates a grating with 7000 lines per centimeter, its second maximum is at 62.4°. What is the wavelength of this light?

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A cat is sleeping on the floor in the middle of a 3.0-m-wide room when a barking dog enters with a speed of 1.50 m/s. as the dog

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Good morning.

Lets make the movement function for the dog and cat.

The cat has a start position of1.5 m(the middle of the room), with an initial speed of 0 and acceleration of 0.85 m/s².

The dog has a start position of 0, an initial speed of 1.5 m/s and acceleration of -0.1 m/s².

<u>Cat:</u>

$\mathsf{X = X_0+V_0t + \dfrac{at^2}{2}}\\ \\ \mathsf{X = 1.5 + \dfrac{0.85t^2}{2}}\\ \\ \\ \mathsf{X_c = 1.5 + 0.425t^2}$

<u>Dog:</u>

$\mathsf{X_d= 1.5t - 0.05t^2}$

Let's see if the dog reach the cat. Physically, it means $\mathsf{X_d = X_c}$

$\mathsf{1.5t - 0.05t^2 = 1.5 + 0.425t^2}\\ \\ \mathsf{0.425t^2 + 0.05t^2 - 1.5t + 1.5 = 0}\\ \\ \mathsf{0.475t^2 - 1.5t + 1.5=0}$

Now we solve for <em>t</em>:

$\mathsf{\Delta = (-1.5)^2 - 4\cdot0.475\cdot1.5}\\ \\ \mathsf{\Delta = 2.25-2.85=-0.6 \ \textless \ 0}$

We have a negative Delta. Therefore, there is no instant t when the dog reaches the cat.

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When 30 V is applied across a resistor it generates 600 W of heat: what is the magnitude of its resistance?

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Answer:

Explanation:

Power is expressed as P = V²/R

R = resistance

V = supplied voltage

Given P = 600W and V = 30V

R = V²/P

R = 30²/600

R = 900/600

R = 1.5ohms

magnitude of its resistance is 1.5ohms

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