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Lisa [10]
3 years ago
10

as a mercury atom absorbs a photon of energy as electron in the atom changes from energy level B to energy level E. calculate th

e frequency of the absorb photon.
Physics
2 answers:
Setler79 [48]3 years ago
8 0

Answer:

2.00x 10 14th Hz

Explanation:

Alchen [17]3 years ago
5 0

Answer:

2.99 x 10^14 Hz

Explanation:

E photon= hf (you have to solve for f)

f= E photon/h

f= 1.98 x 10^-19 J / 6.63 x 10^-34 J x s

f=2.99 x 10^14 Hz

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Artist 52 [7]
The formula for momentum is mass times velocity. Simply, we just multiply the given values:
p = mv
p = 40 kg x 4 m/s
p = 160 kg m/s

Other units for momentum is N s.
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4 0
3 years ago
A car is traveling at a speed of 10m/s. A 0.5kg clump of mudis
CaHeK987 [17]

Answer:B

Explanation:

Given

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Since the tire is rotating about axle so a centripetal force is acting constantly on each particle towards the center of tire.

Centripetal force is given by

F_c=\frac{mv^2}{r}

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F_c=250\ N (inward)

           

3 0
3 years ago
According to Einstein's theory of relativity, what happens to the mass of an object as the object approaches the
Anuta_ua [19.1K]

Answer:

B

Explanation:

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8 0
3 years ago
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A cheetah runs with a constant speed of 8 m/s. How far has the cheetah gone after 25 seconds?
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7 0
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Leno4ka [110]

Answer:

Anna is correct.

Explanation:

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