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3 years ago

What happens to lights reflected angle when passing through glass?

Physics

2 answers:

nekit [7.7K]3 years ago

4 0

Answer:

Refraction of light occurs when light is passed through something. Have you ever seen a rainbow light effect through a window? That is light refraction, where light bends! :)

vekshin13 years ago

3 0

It bends or refracts

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Explain its significance. Check all that apply. Check all that apply. In chemical and physical processes, matter exchanges energ

Helga [31]

The question is incomplete. Here is the complete question.

Explain the significance of the Law of Conservationof Energy. Check all that apply.

1) In chemical and physical processes, matter often exchange energy with its surrounding.

2) System with low potential energy tend to change in the direction of higher potential energy, releasing energy into the surroundings.

3) In the exchanges, the total energy is always conserved; energy is neither created nor destroyed.

4) In chemical and physical changes, matter never exchange energy with its surroundings.

5) In the exchanges, the total energy is always changed; energy is created and destroyed.

6) Systems with high potential energy tend to change in the direction of lower potential energy, releasing energy into its surroundings.

Answer and Explanation: Law of Conservation of Energy states that total energy is constant in any process. It may change in form or be transferred from one system to another, but the total remains the same.

So, analysing each statement above, we have:

In chemical and physical processes, matter CAN exchange energy with its surroundings, so first and fourth statements are incorrect.

Systems with higher potential energy tend to change in the direction of lower potential energy, and can release energy into its surroundings, so sixth statement is correct.

As cited above, in exchanges, total energy is always conserved, i.e. it is always constant, which means inside the system, energy is being transformed into another type of energy or transferred to other matter. Fifth statement is correct.

4 0

3 years ago

A rubber toy duck is at rest on an inclined plane. When the angle of inclination of the plane is increased to 36.0°, the toy duc

ch4aika [34]

Answer

toy begins to slide when the plane is at an angle of 36.0°

at this point the toy has just overcome the static friction

$f_s = \mu_s N$

$f_s = \mu_s mgcos \theta$

since toy begins to slide

$f_s = mgsin \theta$

now on comparing

$mgsin \theta = \mu_s mgcos \theta$

$\mu_s = tan \theta$

$\mu_s = tan (36^0)$

$\mu_s = 0.726$

as the body is moving at constant velocity acceleration will be zero

so now,

$m g sin \theta - f_k = ma$

$m g sin \theta - \mu_k mg cos\theta = 0$

$\mu_k = tan \theta$

$\mu_k = tan (29^0)$

$\mu_k = 0.554$

3 0

2 years ago

A surface receiving sound is moved from its original position to a position three times farther away from the source of the soun

vazorg [7]

Answer:

c. nine times as low.

Explanation:

Sound intensity is defined as the acoustic power transferred by a sound wave per unit of normal area to the direction of propagation:

$I\propto \frac{1}{A}$

Since the sound wave has a spherical wavefront of radius r, then the area is given by:

$A=4\pi r^2$

Here r is the distance from the source of the sound. Thus sound intensity decreases as:

$I\propto \frac{1}{4\pi r^2}\\\\I'\propto \frac{1}{4\pi r'^2}\\\\I'\propto \frac{1}{4\pi (3r)^2}\\\\I'\propto \frac{1}{9} \frac{1}{4\pi r^2}\\\\I'\propto \frac{1}{9} I$

6 0

3 years ago

Once juno reaches jupiter, what is the minimum amount of time it takes for the transmitted signals to travel from the spacecraft

Komok [63]

In very very very round figures . . .

-- Jupiter is about 5.2 times as far from the sun as the earth is.

-- So when Jupiter and the EARTH are aligned in both orbits, Jupiter is about

(4.2) x (150 million kilometers) = 630 million kilometers

Time = (distance) / (speed)

The speed of light and radio is 300,000 km/second

Time = (630 million / 300 thousand)

Time = 2,100 seconds

That's 35 minutes.

4 0

3 years ago

Read 2 more answers

You have given a power supply, copper wire, and an iron nail. What should you do to decrease the strength of the electro magnet?

Shkiper50 [21]

If you wrap some of the wire around the nail in one direction and some of the wire in the other direction, the magnetic fields from the different sections fight each other and cancel out, reducing the strength of your magnet.

8 0

3 years ago