Ariel claims that a pulse is described by the equation 
where x and y are measured in cm and t in s. Miranda says that it is not possible to represent a pulse with this function because a wave must be a function of x + vt or x?vt. Which one, if either, is correct, and why?
A.
B.
C.
D.
E.
is infinite when x = 0.Answer: A
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What will be an ideal response?
Sara lies on a bed of sharp nails without harm because
A) many of the nails don't make contact with her body. B) her weight is distributed over hundreds of nails. C) she exercises mind over matter. D) none of the above
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Indicate whether the statement is true or false
A hydrogen atom makes a downward transition from the state to the n = 5 state. Find the wavelength of the emitted photon
The lowest level energy state of hydrogen is -13.6 eV. (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s) A) 2.43 ?m B) 1.46 ?m C) 1.94 ?m D) 2.92 ?m