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(a) What should be the length of an organ pipe, open at both ends, if the fundamental frequency is to be 264.5 Hz?
m
(b) What is the fundamental frequency of this organ pipe if the temperature drops to 0.0° C?
A 32.0 kg hammer strikes a steel spike 2.70 cm in diameter while moving with speed of 24.0 m/s. The hammer rebounds with speed 11.0 m/s after 0.110 s. What is an average strain in the spike all through the impact.
An audio amplifier, represented by the AC source and the resistor R, what is the time-averaged power delivered to the speaker
A dialectric constant of 3 is inserted into a parallel capacitor, filling one-half of the volume as shown in the figure. If the capacitance of the capacitor without the dialectric is C,
q1. in a head-on collision a car stops in 0.27 from a speed of 12. the driver has a mass of 76 and is fortunately
A certain freely falling object, released from rest, requires 1.85 s to travel the last 38.0 m before it hits the ground. Find the total distance the object travels during the fall
A 2.8-kg piece of aluminum at 28.5 degrees celsius is placed in 1.0 kg of water in a Styrofoam container at room temperature (20 degrees celsius)
An electron with a speed of 7.98 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.25 × 103 N/C, how much time will have elapsed
A projectile is launched straight up at 141 m/s. How fast is it moving at the top of its trajectory? Suppose it is launched upward at 45 degrees above the horizontal plane. How fast is it moving at the top of its curved trajectory and what is the ..
The projection lens in a certain slide projector is a single thin lens. A slide 24.6 mm high is to be projected so that its image fills a screen 1.78 m high. Determine the focal length of the projection lens
An ideal spring has the spring constant k = 428 N/m. find the distance this spring must be stretched from its equilibrium position for 28 J of work to be done.
what is the momentum of a 1800-kg car traveling with a speed of 27m.s (60mph)
From 2 meters inside the water, a fish sees the Sun at an apparent angle of 60.0° above the horizontal. What is the actual elevation angle of the Sun
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