The lowest tone to resonate in an open pipe of length L is 200 Hz. Which one of the following frequencies will not resonate in the same pipe?
A)
400 Hz
B)
600 Hz
C)
800 Hz
D)
900 Hz
E)
1000 Hz
D
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Addition by 1. Components: Two boys, Joe and Sam, who are searching for buried treasure start underneath the same tree. Joe walks 12 m east and then 12 m north, while Sam walks 15 m west and then 10 m south. Both boys then stop. Find the magnitude and direction of the vector from Sam to Joe. Express the direction of this vector by specifying the angle it makes with the west-to-east direction.
What will be an ideal response?
Consider the ratios of the heat capacities ? = Cp/Cv for the three types of ideal gases: monatomic, diatomic, and polyatomic.
A. ? is the greatest for monatomic gases B. ? is the greatest for polyatomic gases C. ? is the same only for diatomic and polyatomic gases D. ? is the same only for monatomic and diatomic gases E. ? is the same for all three
The power rating of a resistor is 0.800 W. If the value of the resistor is 400 ?, what is the maximum voltage?
A) 110 V B) 17.9 V C) 170 V D) 1.80 V
Which of the following statements about electromagnetic waves in a vacuum are true? (There could be more than one correct choice.)
A) The electric field carries more energy than the magnetic field. B) The electric and magnetic fields have equal amplitudes. C) The electric field carries the same mount of energy as the magnetic field. D) The frequency of the magnetic field is the same as the frequency of the electric field. E) The frequency of the electric field is higher than the frequency of the magnetic field.