Evanumber001

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Calculus Help

If a rock is thrown upward on the planet mars with the velocity of 10 m/s its height in meters t seconds later is given by y = 10t - 1.86t^2. Find the average velocity over the given time intervals.

a) [1,3]
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Evanumber001 Feb 6, 2022

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calculus

What is the half-life of a radioactive isotope if the activity of a sample drops from 6,272 cpm to 196 cpm in 29.0 min?

Evanumber001 Dec 8, 2021

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calc

What is the energy in eV of the electron of a hydrogen atom for the orbit designated n = 4?

Evanumber001 Dec 8, 2021

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calc

What is the energy in eV of the electron of a hydrogen atom for the orbit designated n = 3?

Evanumber001 Dec 8, 2021

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calc

What is the radius in nm of the electron orbit of a hydrogen atom for n = 2?

Evanumber001 Dec 8, 2021

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calc

What is the radius in nm of the electron orbit of a hydrogen atom for n = 1?

Evanumber001 Dec 8, 2021

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calc

Photons of a certain infrared light have an energy of 1.12 10-19 J.

(a) What is the frequency of this IR light?
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Evanumber001 Dec 8, 2021

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calc

Photons of a certain ultraviolet light have an energy of 6.68 10-19 J.

(a) What is the frequency of this UV light?
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Evanumber001 Dec 8, 2021