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3 years ago

Planck showed that the energy that is emitted or absorbed by an object is proportional to the _____ of the radiation.

Mathematics

1 answer:

pychu [463]3 years ago

7 0

Answer:

frequency

Step-by-step explanation:

Planck showed that the energy that is emitted or absorbed by an object is proportional to the _ frequency____ of the radiation.

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Mademuasel [1]

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3 years ago

What is the value of x? Enter your answer in the box.

Juliette [100K]

Answer:

x = 68

Step-by-step explanation:

99.2 62

------------------ = ------------------

112 x+2

Cross multiply: 99.2 (x+2) = 6944

Distribute: 99.2x + 198.4 = 6944

Subtract: 99.2x = 6745.6

Divide: x = 68

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3 years ago

What is the value of y ? y=-2x+4?

sineoko [7]

Answer:

y = 4 + -2x

Step-by-step explanation:

Simplifying

y = -2x + 4

Reorder the terms:

y = 4 + -2x

Solving

y = 4 + -2x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying

y = 4 + -2x

4 0

4 years ago

Mrs. Lowndes was building a play house for her grandson.

Vedmedyk [2.9K]

Answer:

21.25ft

Step-by-step explanation:

To solve for this, all you need to do is find a ratio proportional to the given. The given shows the following ratios:

$\dfrac{2in}{5ft}=\dfrac{8.5in}{x}$

All you need to do is solve for x. You can do this by first cross multiplying:

$\dfrac{2in}{5ft}=\dfrac{8.5in}{x}\\\\2in(x)=8.5in(5ft)\\\\2xin=42.5in/ft\\\\Divide\;both\;sides\;by\;2in\\\\\dfrac{2xin}{2in}=\dfrac{42.5in.ft}{2in}\\\\x=21.25ft$

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4 years ago