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Two violinists are playing two different tones. The first violinist plays a tone that has a frequency of 100 Hz. You hear beats separated by 2 seconds. Which of the following could be the frequency of the tone played by the second violinist?
(a) 100 Hz
(b) 100.5 Hz
(c) 101 Hz
(d) 101.5 Hz
A golf ball traveling 3 m/s to the right has a head-on with astationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is:
A string is stretched between fixed supports separated by 73.0 cm. It is observed to have resonant frequencies of 390, What is the wave speed for this string
A wave pulse travels down a slinky. The mass of the slinky is m = 0.86 kg and is initially stretched to a length L = 7.8 m. What is the average speed of a piece of the slinky
The left ventricle of the heart accelerates blood from rest to a velocity of + 25.9 cm/s, How much time does blood take to reach its final velocity
The Earth's radius is about 4000 miles. Kampala, the capital of Uganda, and Signapore are both nearly on the Equator. What is the plane's angular velovity with respect to the Earth's durface
A plane accelerates from rest at a constant rate of 5.00 m/s along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time needed to take off?What is the distance(m) travel..
A right triangle has a hypotenuse of length 17 cm and a leg of length 15 cm. What is the length of the other leg
A standing wave in a column of air with both ends open has a frequency of 440 Hz. The next higher harmonic has a frequency of 700 Hz. How long is the column of air
A very large non conducting plate lying in the xy-plane carries a charge per unit areaof 6σ. A second such plate located at z = 5.00 cm and oriented parallel to the xy-plane carries a charge per unit areaof -3σ. Find the electric field for the fol..
Illustrate what are the nominal and effective interest rates? Also determine the effective interest rate that a typical credit card issuer charges today.
An electron that has an energy of approximately 23 eV moves between rigid walls 1.8 nm apart. Find the precise energy of the electron
Three resistors, 23, 45, and 73 ?, are connected in series, and a 0.55-A current passes through them. (a) What is the equivalent resistance? (b) What is the potential difference across the three resistors?
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