J asked in Science & MathematicsPhysics · 8 years ago

which particles are nearly equal mass components in an atomic nucleus?

a. proton and electron

b. proton and photon

c.neutron and proton

d. neutron and electron

which of the following correctly relates the different properties of electromagnetic radiation?

a. loner wavelength, lower frequency, lower energy, "red"

b. longer wavelength, higher frequency, lower energy, "red"

c. shorter wavelength, lower frequency, lower energy, "blue"

d. shorter wavelength, higher frequency, lower energy, "blue"

which information can tell you the chemical composition of a distant star?

a. the wavelengths of spectral lines in the stars spectrum

b. the doppler shift of the stars spectrum

c.the peak energy of the stars thermal radiation

d. whether the stars spectrum has emission lines or absorption lines

1 Answer

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  • Anonymous
    8 years ago
    Favorite Answer

    c. d. a.

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