Which color is absorbed and which is reflected by the leaves of most plants?

2 answers:

7 0

The answer is D, Red and blue are absorbed and green is reflected, but remember, an object will be the color it reflects!

Alex73 [517]3 years ago

6 0

Im pretty sure the answer is D, Red and blue are absorbed and green is reflected i think this because when i google this, it brings up different colors for different objects, for leaves it says that it is green but reflects other colors besides red and blue(which are absorbed)

I REALLY HOPE THIS IS CORRECT!!
-toast

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A 40.0-mH inductor is connected to a North American electrical outlet (ΔVrms = 120 V, f = 60.0 Hz). Assuming the energy stored i

trasher [3.6K]

Explanation:

It is given that,

Inductance, $L=40\ mH=40\times 10^{-3}\ H$

RMS value of voltage, $v_{rms}=120\ V$

Frequency, f = 60 Hz

We need to find the energy stored at t = (1 /185) s. It is assumed that energy stored in the inductor is zero at t = 0. So,

The current flowing through the inductor is given by :

$I_t=\dfrac{V_o}{X_L}\ (sin\ \omega t-\dfrac{\pi}{2})$

$I_t=\dfrac{\sqrt{2} V_{rms}}{X_L}\ (sin\ \omega t-\dfrac{\pi}{2})$

$I_t=\dfrac{120\sqrt{2}}{2\pi f L}\ sin(2\pi f t-\dfrac{\pi}{2})$

$I_t=\dfrac{120\sqrt{2}}{2\pi\times 60\times 40\times 10^{-3}}\ sin(2\pi \times 60\times \dfrac{1}{185})-\dfrac{\pi}{2})$

$I_t=\dfrac{120\sqrt2}{15.07}\ sin(2\pi \times 60\times \dfrac{1}{185}-\dfrac{\pi}{2})$

I = 0.091 A

Energy stored in the inductor is, $U=\dfrac{1}{2}LI^2$

$U=\dfrac{1}{2}\times 40\times 10^{-3}\times (0.091)^2$

U = 0.000165 Joules

Hence, this is the required solution.

6 0

3 years ago

The function H(t) = -16t^2 + vt + s shows the height H (t), in feet, of a projectile launched vertically from s feet above the g

Reptile [31]

H(t) = -16t^2 + vt + s
Part A:
Using the given data:

H(t)= -16*t² + 60*t + 82;

Part B:
Put H(t)=0
0= -16*t² + 60*t + 82;
Use the quadratic formula to find t.
See the attachment...'t' is replaced with 'x'.