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A turntable of mass 5.01 kg has a radius of 0.129 m and spins with a frequency of 0.530 rev/s. What is its angular momentum? Assume the turntable is a uniform disk.
An electromagnetic wave with a frequency of 4.60×10^14 Hz propagates with a speed of 2.14×10^8 m/s in a certain piece of glass. Find the wavelength of the wave in the glass
The sun is more massive than the moon, but the sun is farther from the earth. Which one exerts a greater gravitational force on a person standing on earth? Give the answer by determining the ratio Fsun/ Fmoon of magnitudes of gravitational forces.
A 4.90?F capacitor that is initially uncharged is connected in series with a 8.00k? resistor, A long time after the circuit is completed (after many time constants) what is the voltage drop across the capacitor
A sinusoidal ac voltage source in a circuit produces a maximum voltage of 12.6V and an rms current of 7.50mA. Find the voltage amplitude
A small, plastic sphere of mass m = 111 g is attached to a string There is an electric field of 122 N/C directed along the + x axis
explain the magnitude of the centripetal acceleration. At what two locations on the x-axis (xpositive, xnegative) is the potential zero.
A velocity selector has a magnetic field of magnitude 0.28 G perpendicular to an electric field of magnitude 0.43 kV/m. What energy must electrons have to pass through undeflected
Free neutrons (unlike those in the nucleus of an atom) decay spontaneously into a proton, an electron and an antineutrino. How much energy is released in this decay
An object is placed to the left of a lens, and a real image is formed to the right of the lens. How far from the lens is the object
Six grams of helium (molecular mass = 4.0 u) expand isothermally at 320 K and does 9000 J of work. determine the ratio of the final volume of the gas to the initial volume
The springs of a 1800kg car compress 5.4mmwhen its 64kg driver gets into the driver's seat.If the car goes over a bump, what will be the frequency of oscillations
A piece of insulated wire is shaped into a figure 8, as shown in Figure P31.18. The radius of the upper circle is 5.00 cm and that of the lower circle is 9.00 cm. What is the magnitude of the induced current in the wire
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