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3 years ago

What is the difference in light that is refracted compared to the light that is reflected?

Physics

2 answers:

Kruka [31]3 years ago

8 0

Answer:

Reflection is when light bounces off an object, while refraction is when light bends while passing through an object.

AVprozaik [17]3 years ago

3 0

What is the difference between light and reflection ?

Reflection is when light bounces off an object, while refraction is when light bends while passing through an object. When you look at a mirror the light bounces of the mirror from different angles, so you can see your reflection.

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A positron undergoes a displacement ∆r= 2i -3j+6k, ending with the position vector r= 3j-4k, in meters. what was the positron's

Margaret [11]

$\Delta{r}=2i-3j+6k \\r_f = 3j-4k \\\Delta{r}=r_f-r_0\Longrightarrow2i-3j+6k=3j-4k-r_0 \\r_0=2i-3j+6k+3j-4k=\boxed{2i+6j+10k}$

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2 years ago

A moving object has a kinetic energy of 150J and a momentum of 20.3kgxm/s find the speed of the object in m/s

Irina-Kira [14]

Answer:

$v = 14.78m/s$

Explanation:

Given

$KE = 150J$

$p = 20.3kgm/s$

Required

Determine the object's speed

Kinetic Energy is calculated as:

$KE = \frac{1}{2}mv^2$

Make m the subject

$m = \frac{2KE}{v^2}$

Momentum is calculated as:

$p = mv$

Make m the subject

$m = \frac{p}{v}$

So, we have:

$m = \frac{p}{v}$ and $m = \frac{2KE}{v^2}$

Equate both expressions: $m = m$

$\frac{2KE}{v^2} = \frac{p}{v}$

Multiply both sides by v

$v * \frac{2KE}{v^2} = \frac{p}{v}*v$

$\frac{2KE}{v} = p$

Make v the subject

$v = \frac{2KE}{p}$

Substitute $KE = 150J$ and $p = 20.3kgm/s$

$v = \frac{2 * 150}{20.3}$

$v = \frac{300}{20.3}$

$v = 14.78m/s$

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2 years ago

13. For an object to appear transparent, what interaction must occur between light waves and the object they hit?

Svetlanka [38]

Answer:

The answer is B

Explanation:

The absorption happens when photons from light hit atoms and molecules, and they vibrate because of that specific interaction. Then the heat ejects from the object in the format of thermal energy.

6 0

2 years ago

Read 2 more answers

Calculate the speed of a car that travels 250 miles in 4.0 hours. (remember your unit)

MrRa [10]

250/4= 62.5 mph

to find the mph of a car, you need to divide the number of miles traveled by the hours that it took to travel that many miles

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2 years ago

When sound is created it travels to the car through a

Rasek [7]

A sound wave is a longitudinal wave caused by vibrations and carried through a substance. The particles of the substance, such as air particles, vibrate back and forth along the path that the sound waves travel. Sound is transmitted through the vibrations and collisions of the particles.

This could maybe help you with your answer.

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2 years ago