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3 years ago

Which colors of light represents the lowest visible frequency?

Physics

1 answer:

kodGreya [7K]3 years ago

3 0

Answer:

Red

Explanation:

Red is a colour which has the lowest frequency. Violet has the highest frequency. Frequency has a direct relationship with energy. This means the higher the frequency, the higher the energy. Red has the lowest energy of all the colors too.

The frequency and Energy has an inverse relationship with the wavelength.

However Red has the longest wavelength of about 620 - 780 nanometer.

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A solid uniform sphere and a thin-walled, hollow sphere have the same mass M and radius R. If they roll without slipping up a ra

elixir [45]

Answer:Hollow sphere

Explanation:

Given

same mass for solid and hollow sphere

same $v_{cm}$ before they start up incline

Moment of inertia of solid Sphere

$I_1=\frac{2}{5}Mr^2$

Moment of inertia of hollow sphere

$I_2=\frac{2}{3}Mr^2$

Conserving Energy at bottom and top point for solid sphere

kinetic energy +Rotational Energy=Potential energy

$\frac{1}{2}Mv_{cm}^2+\frac{1}{2}I\omega ^2=mgh_1$

for pure rolling $v_{cm}=\omega r$

$\frac{1}{2}Mv_{cm}^2+\frac{1}{2}\times \frac{2}{5}Mr^2=Mgh_1$

$\frac{7}{10}Mv_{cm}^2=Mgh_1$

$h_1=\frac{7v_{cm}^2}{10g}$

For hollow sphere

$\frac{1}{2}Mv_{cm}^2+\frac{1}{2}\times \frac{2}{3}Mr^2=Mgh_2$

$h_2=\frac{5v_{cm}^2}{6g}$

therefore height gained by hollow sphere is more

6 0

4 years ago

The density of this material is 2 g/cm3 there are 24 cm3 find the total mass

Fynjy0 [20]

Answer:

<h2>The answer is 48 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 2 × 24

We have the final answer as

Hope this helps you

7 0

3 years ago

What kind of line on a distance vs. time graph indicates that the object is accelerating?

suter [353]

Answer: a curved line

Explanation: a straight line indicates that the object is moving at a constant velocity because it has one slope, but a curved line on a distance-time graph indicates that the velocity is constantly changing because the slope is changing, which is acceleration. the line could be curved in any direction, as long as it shows a change in slope.

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3 years ago

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maria [59]

Answer:

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A _____ tide occurs when the ocean's surface reaches its maximum height in a particular place on any particular day.

Fed [463]

In one of the startling coincidences sprinkled throughout
every field of math and science, the moment of maximum
height is popularly referred to as the "high" tide.

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3 years ago

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