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soldi70 [24.7K]
3 years ago
11

In the visible spectrum, red light has the lowest frequency and violet light has the highest. List the following colors in order

of increasing energy. green blue yellow orange A) blue, green, yellow, orange B) orange, yellow, green, blue C) yellow, orange, blue, green D) green, blue, orange,w
Physics
2 answers:
dalvyx [7]3 years ago
6 0
The correct answer is:
<span>B) orange, yellow, green, blue 

the energy of the photons of light is directly proportional to the frequency of the light. This means that the lower the frequency, the lower the energy, and the higher the frequency, the greater the energy. 

Therefore, the order in increasing energy  is exactly the same as the order in increasing frequency, which is:
</span><span>
orange, yellow, green, blue </span>
LenaWriter [7]3 years ago
6 0

The answer is b !!!!!!

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Answer:

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Explanation:

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3 years ago
A 2.1 kg block is dropped from rest from a height of 5.5 m above the top of the spring. When the block is momentarily at rest, t
ella [17]

Answer:

The speed of the block is 8.2 m/s

Explanation:

Given;

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height above the top of the spring, h = 5.5 m

First, we determine the spring constant based on the principle of conservation of potential energy

¹/₂Kx² = mg(h +x)

¹/₂K(0.25)² = 2.1 x 9.8(5.5 +0.25)

0.03125K = 118.335

K = 118.335 / 0.03125

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Total energy stored in the block at rest is only potential energy given as:

E = U = mgh

U = 2.1 x 9.8 x 5.5 = 113.19 J

Work done in compressing the spring to 15.0 cm:

W = ¹/₂Kx² = ¹/₂ (3786.72)(0.15)² = 42.6 J

This is equal to elastic potential energy stored in the spring,

Then, kinetic energy of the spring is given as:

K.E = E - W

K.E = 113.19 J - 42.6 J

K.E = 70.59 J

To determine the speed of the block due to this energy:

KE =  ¹/₂mv²

70.59 =  ¹/₂ x 2.1 x v²

70.59 = 1.05v²

v² = 70.59 / 1.05

v² = 67.229

v = √67.229

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galina1969 [7]

Answer:

This is the answer that I got.

Explanation:

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