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d1i1m1o1n [39]
3 years ago
11

Which source of energy would you prefer for cooking and why?

Physics
1 answer:
timurjin [86]3 years ago
3 0

Answer:

gas

Explanation:

because It is fast and easy

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The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light
Vlada [557]

Answer:

Minimum required frequency is υmin = 654.9 x 10¹² Hz

Explanation:

The energy of a photon is given by the equation:

E = hυ

where,

E = energy of photon

h = Plank's Constant = 6.626 x 10⁻³⁴ J.s

υ = frequency

The minimum energy of photon, must be equal to the work function of Calcium.

Emin = ∅₀ = h(υmin)

υmin = ∅₀/h

where,

υmin = minimum frequency

∅₀ = work function = 4.34 x 10⁻¹⁹ J

Therefore,

υmin = 4.34 x 10⁻¹⁹ J/6.625 x 10⁻³⁴ J.s

<u>υmin = 654.9 x 10¹² Hz</u>

3 0
3 years ago
If you want to go to a community college and transfer to a four-year university, what classes are required to transfer? How many
bagirrra123 [75]

Typically, most four-year institutions will require the following classes to transfer:

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1 Physical science class.

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That's all I think

3 0
3 years ago
When a football is kicked, the action and reaction forces do NOT cancel each other out because
AfilCa [17]

Answer:

C

Explanation:

The kicker exerts more force of the football which is why the football moves when its kicked.

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What is the half life-life of your 100 atoms of Carbon-14?
Naddika [18.5K]

Answer:

Answer: It takes 5,730 years for half the carbon-14 to change to nitrogen; this is the half-life of carbon-14. After another 5,730 years only one-quarter of the original carbon-14 will remain

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Perpetual Endless Relentless Stubborn Immovable Steady Tireless Enduring Never-ending Constant Ever-lasting
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