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skad [1K]
3 years ago
8

A car with a velocity of 15 m/s is accelerated uniformly at the rate of 1.9 m/s2 for 6.8 s. What is its final velocity?

Physics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:

33 m/s

Explanation:

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Explanation:

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When light shines through atomic hydrogen gas, it is seen that the gas absorbs light readily at a wavelength of 91.63 nm. What i
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Answer:

D) 21

Explanation:

When gas absorbs light , electron at lower level jumps to higher level .

and the difference of energy of orbital is equal to energy of radiation absorbed.

Here energy absorbed is equivalent to wavelength of 91.63 nm

In terms of its energy in eV , its energy content is eual to

1243.5 / 91.63 = 13.57 eV. This represents the difference the energy of orbit .

Electron is lying in lowest or first level ie n = 1.

Energy of first level

= - 13.6 / 1² = - 13.6 eV.

Energy of n th level = - 13.6 / n². Let in this level electron has been excited

Difference of energy

= 13.6 - 13.6 / n² = 13.57 ( energy of absorbed radiation)

13.6 / n² = 13.6 - 13.57 = .03

n² = 13.6 / .03 = 453

n = 21 ( approx )

4 0
3 years ago
If you wanted to know the location of a vehicle that ran out of gas after taking a zigzag route through the city, which quantity
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the vehicles displacement, since displacement deals with position

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3 years ago
A geothermal plant has been built in a location. Which of these is the most likely benefit of the geothermal plant in this locat
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Answer:

C

Explanation:

A and B are not true and D is a disadvantage

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