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Nastasia [14]
3 years ago
9

What is the energy, in joules, of a light wave whose frequency is 5.66× 10^8 Hz ?

Mathematics
1 answer:
Margarita [4]3 years ago
4 0

Energy = Planck's constant * frequency

= 6.626 * 10^-34 * 5.66 * 10^8

= 3.7503 * 10^-25 Joules

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3 years ago
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9) In the standard co-ordinate system, which of the following points in the greatest distance from origin? A. (-4, -1) B. (-3, 3
ludmilkaskok [199]

The point with the greatest distance to the origin is given by:

B. (-3, 3).

<h3>What is the distance between two points?</h3>

Suppose that we have two points, (x_1,y_1) and (x_2,y_2). The distance between them is given by:

D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

The origin is given by point (0,0), hence the distance of a point (x,y) to the origin is given by:

D = sqrt(x² + y²).

Hence the distances for each point given in the problem are:

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Hence option B has the greatest distance.

More can be learned about the distance between two points at brainly.com/question/18345417

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7 0
1 year ago
The formula I = PRT is used to calculate the amount of simple Teresa earned. Solve this formula for T
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To solve this formula for T, divide both sides of the original equation by PR:

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------ = ---------   =>    T = I / (PR)

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Please note:  Because the formula I = PRT involves neither addition nor subtraction, the final formula for T cannot involve either addition nor subtraction.  That leaves:

T = I P/R

T= IPR

The second formula here is incorrect; we cannot solve I = PRT for T simply by rearranging the order of the variables.  This leaves T = I P/R as a possible answer, but this answer does not agree with my   T = I / (PR).  Please double check to ensure that you have copied down the four possible answers correctly.


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3 years ago
Charlie wants to buy new carpet for his living room floor the floor is in the shape of a rectangle its length is 15 feet and the
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Answer:

135 square ft.

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8 0
2 years ago
Hey please I need help with this
saul85 [17]

Answer:

78.5

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