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IrinaK [193]
4 years ago
10

What happens when a substance absorbs light?

Physics
1 answer:
Anna11 [10]4 years ago
7 0
<span>One of three things the photon passes through unscathed, the photon gets absorbed by the electron of an atom and stays put, or the photon gets absorbed and a second generation photon is generated by that electron</span>
You might be interested in
A soccer player attempting to steal the ball from an opponent was extending her knee at 50 deg/s when her foot struck the oppone
denpristay [2]

Answer:

\alpha = -4.36 rad/s^2

Explanation:

Initial angular speed of the player is given as

\omega = 50 deg/s

here we know that

1 deg = \frac{\pi}{180} rad

now we know that

\omega = 50\frac{\pi}{180}

\omega = 0.87 rad/s

now its speed comes to zero in 0.2 s

so angular acceleration is given as

\alpha = \frac{\omega_f - \omega_i}{\Delta t}

\alpha = \frac{0 - 0.87 rad/s}{0.2 s}

\alpha = -4.36 rad/s^2

7 0
3 years ago
Suppose Person A runs off the edge of the cliff at 2 m/s and Person B runs off the edge at 1 m/s. Which will hit the ground fart
djverab [1.8K]

Answer:

<h2>Person A will hit a distance father</h2>

Explanation:

Based on the fact that the velocity of person A is more than that of person B, that is from the question, person A has a velocity of 2m/s and person B has a velocity of 1m/s, this clearly shows that person A has the tendency to hit a distance farther from the cliff than person B.

3 0
4 years ago
If you put a cup of hot chocolate at 90c on a table in a room kept at 25c you know it will cool down. How cool will the hot choc
bagirrra123 [75]

Answer:

Explanation:

Assuming we have a two hot liquid like 70°C tea and 30°C water, the tea will cool down but not to 30°C but to an equilibrium temperature say 40°C

But in this case, the temperature of the chocolate will drop almost to the room temperature eventually,

The heat in the chocolate will even out into the room temperature and the room will get slightly warmer until the are both in equilibrium temperature. But you won't notice this little change but if you go out of the room, you might notice that change...

So this little fraction is not always notice, so we will still considered it as the room temperature

7 0
3 years ago
An electromagnetic wave has a wavelength of 1.3m what is the frequency of wave
larisa86 [58]
V = f * wavelength
as we know electromagnetic wave has speed equal to light, so

3 * 10^8 = f * 1.3
f = 2.3 * 10^8 hertz
f = 230 mega hertz
6 0
3 years ago
A certain frictionless simple pendulum having a length L and mass M swings with period T. If both L and M are doubled, what is t
Mama L [17]

Answer:

c. √2T

Explanation:

The period of a simple pendulum is given by;

T = 2\pi \sqrt{\frac{L}{g} } \\\\\frac{T}{2\pi} = \sqrt{\frac{L}{g}} \\\\\frac{T^2}{4\pi^2} = \frac{L}{g}\\\\\frac{g}{4\pi^2}  = \frac{L}{T^2}\\\\ \frac{L_1}{T_1^2}= \frac{L_2}{T_2^2}\\\\T_2^2 = \frac{L_2T_1^2}{L_1}\\\\L_2 = 2L_1\\\\ T_2^2 = \frac{2L_1T_1^2}{L_1}\\\\ T_2^2 =2T_1^2\\\\T_2 = \sqrt{2T_1^2}\\\\T_2 = T_1\sqrt{2}

Thus, the the new period will be √2T

4 0
3 years ago
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