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Andre45 [30]
3 years ago
9

Identify at least one example each of absorption, transmission, reflection, and refraction of waves in this photograph.

Physics
1 answer:
hoa [83]3 years ago
4 0

Answer:

Explanation:

example of absorption=sunlight landing on a face is mostly absorbed, warming the skin.                                                                                                                   example of transmission=light passing through a glass window continues with over 95% of its energy                                                                                         example of reflection=reflection of light, sound and water waves.               example of refraction=a bending of the sun's rays as they enter raindrops, forming a rainbow.

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State characteristics of the images formed by pin - hole camera​
Leokris [45]

Answer:

Real image

Explanation:

The picture is real, but it is reversed and tiny. An picture generated by a pinhole camera has certain features. As compared item, the image created by a pinhole camera is normally pretty small and looks reversed both on the vertically and horizontally axis.

8 0
3 years ago
g A motorist traveling at 30.0 m/s passes a stationary police car. The police car gives chase 2.0 s later, accelerating at 5.0 m
Sedaia [141]

The time for the police car to catch up with the speeding motorist is 7.6 seconds.

<h3>What time will the police car catch up with the speeding motorist?</h3>

The police car and the motorist will cover equal distances.

Let the distance covered be d.

Distance covered by the motorist  = speed * time

time = t, speed = 30 m/s

d = 30t

Distance covered by the police car = acceleration * (time)

time = t - 2, acceleration = 5.0 m/s²

d = 5(t-2)²

d = 5(t² - 4t + 4)

d = 5t² - 20t + 20

Equating the two equations for distance

5t² - 20t + 20 = 30t

5t² - 50t + 20 = 0

Solving for t using the quadratic formula:

t = 9.6 second or 0.4 seconds

Since t > 2, t = 9.6 seconds

t - 2 = 9.6 - 2

t - 2 = 7.6 seconds

Therefore, the time for the police car to catch up with the speeding motorist is 7.6 seconds.

Learn more about distance and acceleration at: brainly.com/question/14344386

#SPJ1

4 0
2 years ago
A proton moving in the positive x direction with a speed of 8.9 105 m/s experiences zero magnetic force. When it moves in the po
solniwko [45]

Answer:

The magnitude of magnetic field is 1.19 T and its direction magnetic is in negative x direction.

Explanation:

Given that,

Speed of a proton, v=8.9\times 10^5\ m/s (due +x direction)

When it moves in the positive y direction it experiences a force of, F=1.7\times 10^{-13}\ N (due positive z direction)

We need to find the magnitude and direction of the magnetic field. The magnetic force is given by :

F=q(v\times B)\\\\B=\dfrac{F}{qv}\\\\B=\dfrac{1.7\times 10^{-13}}{1.6\times 10^{-19}\times 8.9\times 10^5}\\\\B=1.19\ T

For direction :

F=q(v\times B)\\\\k=(+q)(j\times B)\\\\B=-i

So, the magnitude of magnetic field is 1.19 T and its direction magnetic is in negative x direction.

4 0
3 years ago
The density of cork is 0.24 g/cm3. What is the volume of a 240-gram piece of cork?
rjkz [21]
One divides the volume by the density. You get 1000 cm^3=1dm^3
(or one liter, if you want)
5 0
3 years ago
Read 2 more answers
25-2y plzzz help I'm stuck on this
romanna [79]
I think you cant subtract this because you have no like terms. So the answer is the question.
7 0
3 years ago
Read 2 more answers
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