Most of the energy emitted by the Sun is generated in the

a. corona.
b. photosphere.
c. chromosphere.
d. core.


d

Physics & Space Science

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An electron is confined in a harmonic oscillator potential well. What is the longest wavelength of light that the electron can absorb if the net force on the electron behaves as though it has a spring constant of 74 N/m?

(mel = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 1.055 × 10-34 J ? s, h = 6.626 × 10-34 J ? s) A) 210 nm B) 200 nm C) 220 nm D) 230 nm

Physics & Space Science

A particle moving with a constant acceleration has a velocity of 20 cm/s when its position is x = 10 cm. Its position 7.0 s later is x = ?30 cm. What is the acceleration of the particle?

A. ?7.3 cm/s2 B. ?8.9 cm/s2 C. ?11 cm/s2 D. ?15 cm/s2 E. ?13 cm/s2

Physics & Space Science

At the solstice, what is the maximum angle the Sun can be above or below the equator?

What will be an ideal response?

Physics & Space Science

A particle is in the ground state of a one-dimensional box of length 1.0 m. What is the minimum value of its momentum (in kg × m/s)?

a. 9.9 × 10^-34 b. 6.6 × 10^-34 c. 3.3 × 10^-34 d. 13 × 10^-34 e. cannot be solved unless mass of particle is known.

Physics & Space Science