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A longitudinal wave that has a frequency of 30.0 Hz travels along a coil spring. If the distance between successive compressions (condensations) is 0.400 m, what is the speed of the wave?
Your amplifier is playing a 225 Hz tone. When you double the amplitude(loudness), what happens to the speed of the sound (v) and the frequency (f)?
A 5 g bullet with speed of 400m/s gets stuck in a 1 kg wooden block (originally not moving). Classify the collision. (b) Find the new speed of block+bullet. (c) Find the amount of kinetic energy lost. Where does it go?
A plane leaves Seattle, flies 80.0mi at 21.0 north of east, and then changes direction to 50.0 south of east. How far should the crew fly to go directly to the field
A block with mass m =7.0 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.2 m. Where is the potential energy of the system the greatest
Two loudspeakers on a concert stage are vibrating in phase. A listener is 47.3 m from the left speaker and 32.1 m from the right one. What is the lowest frequency that can be heard loudly
Light in a trasnparant material (index of refraction 1.333) strikes a boundary with another transparant material. (n=1.010), What is the critical angle for total internal reflection
What is angular width of the beam
When at rest, a proton experiences a net electromagnetic force that has a magnitude of 7.2 x 10^-4 N and points in the positive x-direction. Find the magnitude and direction of the magnetic field
The resonant frequency of an RCL circuit is 1.5 kHz, and the value of the inductance is 6.4 mH. What is the resonant frequency
A light beam strikes a piece of glass at a 72.00^\circincident angle. The beam contains two wavelengths, 450.0{\rm nm}and 700.0 {\rm nm},for which the index of refraction of the glass is 1.4820 and1.4742, respectively
Suppose a conducting sphere of radius 40 cm has a charge of 7 mC and a mass of 2 kg. What is the electric potential at the center of the sphere
a 10 N force is applied to a wheel with a radius of 3 cmcausing an acceleration of 12 rad/s2. what is the rotational of inertia of the wheel
What advice would you give someone about how to estimate the full cost of a project (beyond just material and labor) and the full value or worth.
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