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Tcecarenko [31]

3 years ago

13

A hydrogen atom has its electron in the n = 6 level. the radius of the electron's orbit in the bohr model is 1.905 nm.

1 answer:

gayaneshka [121]3 years ago

5 0

Are there any options or is it not multiple choice.

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What type of electromagnetic energy reflected by the moon is most easily seen by a person on earth?

Pani-rosa [81]

The answer is Ultraviolet light.

8 0

3 years ago

In a pipe closed at one end and filled with air, a 384-Hz tuning fork resonates when the pipe is 22-cm-long; this tuning fork

Mice21 [21]

Answer:

Three other length for which resonance will occur is 66 cm, 110 cm and 154 cm

Explanation:

As we know that the length of the pipe is 22 cm

Now let say it is in 1st harmonic state so we have

$\frac{\lambda}{4} = L$

so we have

$\frac{\lambda}{2} = 2L$

So we have

$L_1 = L + \frac{\lambda}{2}$

$L_1 = L + 2L$

$L_1 = 22 + 2L$

For N = 1

$L_1 = 66 cm$

For N = 2

$L_2 = 22 + 88$

$L_2 = 110 cm$

For N = 3

$L_3 = 22 + 132$

$L_3 = 154 cm$

4 0

4 years ago

As light travels from air to water to glass, it will refract. The best explanation for this would be

Lelu [443]

D) The speed of a wave slows as it travels at different speed in different media.

8 0

4 years ago

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I need help!! Due at midnight.

kolezko [41]

Electric current in a (circuit) is due to a (positive charge flow or just flow) produced by (sources such as batteries, solar cells, electric machines). It’s opposed by (resistance).. and I don’t understand the large and small.. but it’s a start. Hopefully I helped

4 0

3 years ago

A hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. after a short rest at the lake, she hi

3241004551 [841]

Let's choose east as positive x-direction and south as positive y-direction. We can resolve the two displacement along these two axes:

- Displacement 1 (3.5 km, $55^{\circ}$ south of west

$d_{1x}=-(3.5 km)( cos 55^{\circ})=-2.01 km$

$d_{1y}=(3.5 km)( sin 55^{\circ})=2.87 km$

- Displacement 2 (2.7 km, $16^{\circ}$ east of south

$d_{2x}=(2.7 km)( sin 16^{\circ})=0.74 km$

$d_{1y}=(2.7 km)( cos 16^{\circ})=2.60 km$

So, the total components on the two directions are

$d_x = -2.01 km+0.74 km=-1.27 km$

$d_y=2.87 km+2.60 km=5.47 km$

And the magnitude of the hiker's resultant displacement is

$d=\sqrt{(1.27 km)^2+(5.47 km)^2}=5.6 km$

8 0

3 years ago

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