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alexdok [17]
3 years ago
10

What happens when light from the sun passes through any type of matter ?

Physics
2 answers:
fiasKO [112]3 years ago
8 0

Answer: Depending on the matter that the light pass through can give you different results.

The matter might be transparent, translucent, or opaque depending on how it interacts with light.

Explanation:

Transmission of light occurs when light passes through matter. As the light being transmitted, it may reflected, absorbed, scattered or pass straight through the matter.

Reflection of light occurs when light bounces back from a surface that it cannot pass through example mirror.

While in absorption, when light is absorbed, the temperature of the matter increases, thus it is said more energy has been added to the matter. Absorption is mostly high in black matters. Example when you wore a black shirt and work under the sun, you found out that you havr to deal with heat more than when you wore white or different color.

dsp733 years ago
5 0
Most of the light is absorbed.
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You have a 1.55 kg block of silver at room temperature of 20 °C. Silver melts at 962°C. How much heat energy would be needed to
notsponge [240]
Specific heat capacity= heat energy/mass×temperature rise

962°C - 20°C = 942K

Heat energy (Eh) = 239 × 1.55 × 942
Eh= 348963.9J

shc of Ag: 238.6 J/kg-K

m of Ag: 1.55kg
5 0
3 years ago
The circumference of a bicycle wheel is 2 meters. if it rotates at 1 revolution per second then its linear speed is
tester [92]
Given:
Circumference = 2 m
Angular speed,  ω = 1 rev/s = 2π radians/s

If the radius is r, then
2πr = 2 
r = 1/π m

The linear (tangential) speed is
v = rω
   = (1/π m)*(2π rad/s) = 0.5 m/s

Answer: 0.5 m/s
6 0
2 years ago
One side of a triangle is increasing at a rate of 5 cm/sec and a second side is increasing at a rate of 7 cm/sec. If the area of
Vanyuwa [196]

Answer:

The rate of angle is 26.25 rad/sec.

Explanation:

Given that,

First side of triangle a= 20 cm

Second side of triangle b= 50 cm

One side of a triangle is increasing at a rate = 5 cm/sec

Second side is increasing at a rate = 7 cm/s

Angle \theta=\dfrac{\pi}{3}=60^{\circ}

If the area of the triangle remains constant,

We need to calculate rate of angle

Using formula of area of triangle

A=\dfrac{1}{2}ab\sin\theta

On differentiating

\dfrac{dA}{dt}=\dfrac{1}{2}ab\cos\theta\dfrac{d\theta}{dt}+\dfrac{1}{2}a\sin\theta\dfrac{db}{dt}+\dfrac{1}{2}b\sin\theta\dfrac{da}{dt}

Put the value into the formula

0=\dfrac{1}{2}\times20\times50\cos60\dfrac{d\theta}{dt}+\dfrac{1}{2}\times20\sin60\times7+\dfrac{1}{2}\times50\sin60\times5

\dfrac{d\theta}{dt}=\dfrac{35\sqrt{3}\times\dfrac{25}{2}\sqrt{3}\times5}{250}

\dfrac{d\theta}{dt}=26.25\ rad/sec

Hence, The rate of angle is 26.25 rad/sec.

8 0
3 years ago
A car travels 100 m in 4 s on a highway going east. What is the velocity of the car?
taurus [48]

Answer:

<h2>velocity =25</h2>

Explanation:

<h3>Average velocity =total displacement <em>/</em><em>time </em><em>e </em><em>taken</em></h3>

<em>so,</em><u>average </u><u>velocity</u><u> </u><u>=</u><u>total </u><u>displacement</u>

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>total </u><u>time </u>taken

100m/4 =25

<h2>velocity =25</h2>
5 0
2 years ago
Read 2 more answers
I need help asap plzz
jekas [21]
Its c). cause they are separate variables
7 0
2 years ago
Read 2 more answers
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