3 years ago

PLEASE HELP

Physics

1 answer:

Arisa [49]3 years ago

5 0

Answer:

C should be the correct one

You might be interested in

Which type of energy do you always have at the top of the first hill on a roller coaster?

Verdich [7]

Answer:

Potential Energy

8 0

3 years ago

Read 2 more answers

Name 3 muscles of the leg

xxTIMURxx [149]

Answer:

calf

Explanation:

jdjdjddjdjdhdhdj

4 0

3 years ago

A hydrogen atom that has an electron in the n = 2 state absorbs a photon. What wavelength must the photon possess to send the el

Deffense [45]

Answer:

486nm

Explanation:

in order for an electron to transit from one level to another, the wavelength emitted is given by Rydberg Equation which states that

$\frac{1}{wavelength}=R.[\frac{1}{n_{f}^{2} } -\frac{1}{n_{i}^{2} }] \\n_{f}=2\\n_{i}=4\\R=Rydberg constant =1.097*10^{7}m^{-1}\\subtitiute \\\frac{1}{wavelength}=1.097*10^{7}[\frac{1}{2^{2} } -\frac{1}{4^{2}}]\\\frac{1}{wavelength}= 1.097*10^{7}*0.1875\\\frac{1}{wavelength}= 2.06*10^{6}\\wavelength=4.86*10{-7}m\\wavelength= 486nm\\$