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Helen [10]
3 years ago
15

Which statement best describes the characteristics of white light? A. White light is composed of a spectrum of many different co

lors. B. White light is composed of radiation with a wide range of amplitudes. C. White light is composed of various wavelengths of light not seen by the naked eye. D. White light is composed of radiation that travels at different speeds producing various colors
Physics
1 answer:
kodGreya [7K]3 years ago
6 0
A white light is, by definition, apparently colorless light, for example ordinary daylight. It contains all the wavelengths of the visible spectrum at equal intensity.

so A.
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A hockey puck sliding on smooth ice at 4 m/s comes to a 1-m-high hill. Will it make it to the top of the hill?
solniwko [45]

Answer:

No  it will not make to the top of the hill  

Explanation:

From the question we are told that

   The velocity is  v  =  4 \ m/s

    The height of the hill is  h  = 1 \  m

Generally from the law of energy conservation we have that

   The kinetic energy of the pluck at the level position =  The potential energy of the pluck at the maximum height the  pluck can get  to  

So

       \frac{1}{2}  * m * v^2 =  m *  g *  h_{max}

=>    \frac{1}{2}   * v^2 =    g *  h_{max}

=>     h_{max} =   \frac{0.5 * v^2}{g}

=>     h_{max} =  0.8163 \  m

Given that the maximum height which the pluck can get to at this speed given in the question is less than the height of the hill then conclusion will be that the pluck will not make it to the top of the hill

     

3 0
3 years ago
An aurora occurs when?
Vinil7 [7]

energetic electrically charged particles (mostly electrons) accelerate along the magnetic field lines into the upper atmosphere, where they collide with gas atoms, causing the atoms to give off light.

(exploratorium.com)

gotta cite those sources

4 0
2 years ago
What is the velocity of a dropped object after it has fallen for 3.0 seconds?
7nadin3 [17]
As a consequence, gravity will accelerate a falling object so its velocity increases 9.81 m/s or 32 ft/sfor every second it experiences free fall. Velocity (v) can be calculated via v = gt, where g represents the acceleration due to gravity and t represents time in free fall.
3 0
3 years ago
Which kind of waves are sound vibrations made of?
Paha777 [63]
The answer is longitudinal. There are two types of waves: transverse and longitudinal. Transverse waves are those whose vibrations are perpendicular to the direction of the wave. Longitudinal or compression waves are those whose vibrations are in the same direction as the wave. Sound is caused by the compression of vibrations of molecules.
6 0
3 years ago
Fossil fuels transform chemical energy into other forms of energy. Please select the best answer from the choices provided
ioda
This statement is true 

5 0
3 years ago
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