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3 years ago

13

If the energy from the light is captured and stored by the surface without being reflected or transmitted, then it has been ____

___. A. absorbed B. bent C. scattered D. refracted

2 answers:

vekshin13 years ago

6 0

A. ABSORBEDDDDDDDDDDDDDDDDDD

a_sh-v [17]3 years ago

6 0

The answer is A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.

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The sun's _____ is the layer that emits visible light.

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The Photosphere is the right answer

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Answer:

The current will increase with reduction in the resistance.

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A long string is wrapped around a 6.6-cm-diameter cylinder, initially at rest, that is free to rotate on an axle. The string is

lys-0071 [83]

Answer:

$\omega_f=571.42\ rpm$

Explanation:

It is given that,

Diameter of cylinder, d = 6.6 cm

Radius of cylinder, r = 3.3 cm = 0.033 m

Acceleration of the string, $a=1.5\ m/s^2$

Displacement, d = 1.3 m

The angular acceleration is given by :

$\alpha =\dfrac{a}{r}$

$\alpha =\dfrac{1.5}{0.033}$

$\alpha =45.46\ rad/s^2$

The angular displacement is given by :

$\theta=\dfrac{d}{r}$

$\theta=\dfrac{1.3}{0.033}$

$\theta=39.39\ rad$

Using the third equation of rotational kinematics as :

$\omega_f^2-\omega_i^2=2\alpha \theta$

Here, $\omega_i=0$

$\omega_f=\sqrt{2\alpha \theta}$

$\omega_f=\sqrt{2\times 45.46\times 39.39}$

$\omega_f=59.84\ rad/s$

Since, 1 rad/s = 9.54 rpm

So,

$\omega_f=571.42\ rpm$

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