3 years ago

For the following types

1 answer:

4 0

Answer: In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

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Which model of the atom first introduced the idea of a nucleus?

earnstyle [38]

The Rutherford model showed that the atom is mostly empty space with a tiny,massive,positively charged nucleus in the center.

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3 years ago

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a 45kg box of books is lifted o a bookself 1.75 m above the floor. how much work was done to lift the books?

jekas [21]

Answer:

770 J

Explanation:

W = PE

W = mgh

W = (45 kg) (9.8 m/s²) (1.75 m)

W = 770 J

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3 years ago

Consider a series rlc circuit where r = 45.0 ω, c = 15.5 μf, and l = 0.0940 h, driven at a frequency of 50.0 hz. determine the p

givi [52]

$R = 45 \ \Omega. \newline C = 15.5 \ \mu F = 15.5 \cdot 10^{-6} \ F.\newline l = 0.0940 \ H.\newline \nu = 50 \ Hz. \newline \newline x_{l} = 2 \pi \nu l = 2 \pi \cdot 50 \cdot 0.0940 = 29.5309709437 \approx 29.5 \ \Omega. \newline x_{c} = \frac{1}{2 \pi C \nu} = \frac{1}{2 \pi \cdot 15.5 \cdot 10^{-6} \cdot 50} = 0.00486946861 \approx 0.005 \ \Omega. \newline Z = \sqrt{R^{2}+(x_{l}-x_{c})^{2}} = \sqrt{45^{2}+(29.5-0.005)^{2}} = 53.8047862648 \approx 54 \ \Omega. \newline \newline \cos(\theta) = \frac{R}{Z} = \frac{45}{54} = 0.8\bar{3} \Rightarrow \arccos(0.8\bar{3}) = 33.5573098 \approx 33.5 \textdegree.$

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4 years ago

The bottom is hard what is the answers

riadik2000 [5.3K]

11. aboard
12. marsh
13. swore
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please vote my answer brainliest! thanks.

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3 years ago

For an answer to be completed the units need to be specified why?

Setler79 [48]

Answer:

so you know the units in the problem and answer are the same, if they aren't you have to convert them to the same units.

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3 years ago