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Two sources of sound of equivalent loudness have frequencies of 448 Hertz and 452 Hertz. Find how many beats per second would one hear?
200mH inductor with 78 ohm resistance is connected in series to a 16 u F capacitor and a 60 Hz Vrms = 25 V source. Calculate the rms current
A playground merry-go-round of radius R = 1.40 m has a moment of inertia I = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
A concave mirror has a radius of curvature of 34.8 cm. What is the height of the image of the insect
Air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 F to 15 psia. Employing the ideal gas model with constant specific heat ratio k, determine the temperature at the end of the process and the amounts of wo..
Two blocks (M1 = 2.75 kg and M2 = 6.49 kg) are in contact on a frictionless, horizontal tabletop. What is the contact force between the blocks
A 2.0 kg pendulum bob on a string 1.5m long is released with a velocity of 0.0 m/s when the support string makes an angle of 60 degrees with the vertical. What is the tension in the string at the bottom of the swing?
An electrical resistor has a voltage drop of 5.00 V when 0.300 A of current flows. At what rate (W) is heat dissipated
The proper length of one spaceship is three times that of another. The two spaceships are traveling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to have the same length. If the slower space..
a spring with a mass on the end of it hangs in equilibrium a distance of 0.420 m above the floor. the mass is pulled
What linear speed must a 4.5×10?2 hula hoop have if its total kinetic energy is to be 0.15 ? Assume the hoop rolls on the ground without slipping.
A cube and a hollow sphere are released from the top of aninclined plane. What is the speed of the cube when it reaches the ground
In order to get that pesky pig you launch a bird at an angle large enough to pass over the barrier. The pig is 80m from the launching point and the barrier is 30m from the launching point. What is the initial horizontal speed
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