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Chapter 37: Q. 21 (page 1082)
Write the symbol for an atom or ion with:
a. one electron, one proton, and two neutrons.
b. seven electrons, eight protons, and ten neutrons.
a. The atom is.
b. The ion is.
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Figure 37.7 identified the wavelengths of four lines in the Balmer series of hydrogen.
a. Determine the Balmer formula n and m values for these wavelengths.
b. Predict the wavelength of the fifth line in the spectrum
Adiameter metal sphere is glowing red, but a spectrum shows that its emission spectrum peaks at an infrared wavelength of .How much power does the sphere radiate? Assume
A -long train is heading for an -long tunnel. If the train moves sufficiently fast, is it possible, according to Experimenters on the ground, for the entire train to be inside the tunnel at one instant of time? Explain.
Event A occurs at space-time coordinates (300m, 2μs). a. Event B occurs at space-time coordinates(1200m, 6μs). Could A possibly be the cause of B? Explain. b. Event C occurs at space-time coordinates(2400 m, 8μs). Could A possibly be the cause of C? Explain
A cosmic ray travels through the earth’s atmosphere in, as measured by experimenters on the ground. How long does the journey take according to the cosmic ray?
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