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Ksenya-84 [330]
3 years ago
9

What is the term for splitting white light in to the different colors of light?

Physics
1 answer:
vfiekz [6]3 years ago
6 0

Answer:

Dispersion

Explanation:

<u>Dispersion is the phenomenon of the splitting of the light into its constituent colors when it passes through the prism.</u> White light is composed of seven colors which are Violet, Indigo, Blue, Green, Yellow, Orange, Red, written in the form of increasing wavelength. When the light passes through the prism it splits into these seven colors.

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Under normal conditions, what color do we expect diamonds to be?​
Ann [662]
Under normal lighting conditions, most diamonds appear to be colorless the naked eye. Many consumers think that all diamonds are colorless, however, in reality, they come in a wide range of colors. Actualcolor differences are very subtle.
8 0
3 years ago
Two balls of unequal mass are hung from two springs that are not identical. The springs stretch the same distance as the two sys
IRISSAK [1]

Answer:

b) Springs oscillate with the same frequency,

Explanation:

expression for frequency of vibration of mass hanging from a spring is given as follows

f = \frac{1}{2\pi} \times \sqrt{\frac{k}{m} }

k is force constant of spring and m is mass vibrating .

In the present case, if mass stretches the spring by x and remains balanced

mg = k x

\frac{k}{m} =\frac{g}{x}

g and x are same  for both cases

\frac{k}{m} will also be same for both cases .

Hence frequency of vibration will also be same for both the balls .

4 0
3 years ago
What would a velocity of a rock dropped from a cliff be after falling for 6 seconds?
Ivenika [448]

Answer:

  A. 58.8m/s

Explanation:

The acceleration due to gravity is 9.8 m/s², so the velocity after 6 seconds is ...

  v = at

  v = (9.8 m/s²)(6 s) = 58.8 m/s

5 0
3 years ago
Can someone help me out??? I need this done ASAP TYSM!!
Reil [10]

Answer:

Answer is D

Explanation:

By changing the direction of the current moving through the wire will change polarity of the magnet but it will not affect the strength of the magnet.

3 0
3 years ago
An object in space has altitude of 2210 km, velocity of 7000 m/s and flight path angle of 20 degrees. Find the eccentricity, sem
Dmitry [639]

Answer:

Eccentricity = 0.0557

Semi-major axis = 9,095 km

Angular momentum/mass = 60,116 \frac{km^{2} }{Sec}

Kinetic energies/mass = 24,500 KJ

Potential energies/mass = 21,673 KJ

Explanation:

Eccentricity

To find the eccentricity use the following formula

Eccentricity = [ Altitude from the earth x ( Velocity^{2} / Gravitational parameter for the Earth ) ] - 1

Where

Altitude from the earth radius = Radius of the earth + Altitude of the earth from radius = 6,378 km + 2,210 km = 8,588 km

Velocity = 7,000 m/s

Gravitational parameter for the Earth = 3.986004418 × 10^{14}

Eccentricity = ?

Placing values in the formula

Eccentricity = [ ( 8,588 km x 1000 ) x ( 7000^{2} / 3.986004418 × 10^{14}   ) ] - 1

Eccentricity = 0.0557

Semi-major axis

Total Distance = Semi-major axis x ( 1 - Eccentricity )

Where

Total Distance = 8,588 km

Eccentricity = 0.0557

8,588 x 1,000 m = Semi-major axis x ( 1 - 0.0557 )

8,588,000 m = Semi-major axis x 0.9443

Semi-major axis = 8,588,000 m / 0.9443

Semi-major axis = 9,094,567.40 m

Semi-major axis = 9,094.56740 km

Semi-major axis = 9,095 km

Angular momentum/mass

L = MVR

L/M = VR

Where

V = Velocity = \frac{7,000 m/s}{1000} = 7 km/s

R = Total Radius = Radius of Earth + Altitude = 6,378 km + 2,210 km = 8,588 km

Placing values in the formula

L/M = 7 km/s x 8,588 km = 60,116 \frac{km^{2} }{Sec}

Kinetic energies/mass

Ke = I W^{2}

Ke = \frac{1}{2} mr^{2} W^{2} ( Where I = mr^{2} )

\frac{ke}{m} = \frac{r^2}{2} W^{2}

\frac{ke}{m} = \frac{r^2}{2} \frac{V^2}{r^2} ( W^{2} = \frac{V^2}{r^2} )

\frac{ke}{m} = \frac{V^2}{2}

\frac{ke}{m} = \frac{7000^2}{2}

\frac{ke}{m} = 24,500,000 J

\frac{ke}{m} = 24,500 KJ

Potential energies/mass

PE = mgh

\frac{PE}{m} = gh

Where

g = 9.807 \frac{m}{s^2}

h = 2,210 km x 1,000 = 2,210,000 m

Placing values in the formula

\frac{PE}{m} = 9.807 \frac{m}{s^2}  x 2,210,000 m

\frac{PE}{m} = 21,673,470 J

\frac{PE}{m} = 21,673.470 KJ

\frac{PE}{m} = 21,673 KJ

8 0
3 years ago
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