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An automobile can be considered to be mounted on four identical springs as far as vertical oscillations are concerned. The springsof a certain car are adjusted so that the oscillations have afrequency of 2.62 Hz. (a) What is the spring constant of each spring if the mass of the car is 1910 kgand the mass is evenly distributed over the springs? (b) What will be the oscillation frequency (in Hz) if five passengers, averaging 80.8 kg each, ride in the car with an even distribution of mass?
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. find the speed of a satellite in geosynchronous orbit
A turntable 1.50m in diameter rotates at 77.0rpm. Two speakers, each giving off sound of wavelength 30.7cm , are attached to the rim of the table at opposite ends of a diameter.
The middle C string on a piano is under a tension of 911 N. The period and wavelength of a wave on this string are 3.82 ms, Find the linear density of the string
Find an expression for the loop's velocity as a function of time as it enters the magnetic field. You can ignore gravity, and you can assume that the back edge of the loop has not entered the field
What three experimental observations in the photoelectric effect could not be explained classically and why? How did Einstein resolve these problems? (Be explicit and state which assumptions were new to Einstein.)
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.250microC on each plate. The plates are 0.500mm apart. What is the surface charge density on each plate
You are given a container with 5.0g of hydrogen atoms. What is the total charge on the electrons in the container? What is the total charge on the protons
Two 3.25μF capacitors are connected in series across the terminals of a 50.0-Hz ac generator that has a peak voltage of 244V. Determine the rms (peak) current in the circuit
In a severe storm, 1.05 cm of rain falls on a flat horizontal roof in 31.0 min. obtain the average force exerted on the roof by the rain
A stone is dropped at t = 0. A second stone, with 2 times the mass of the first, How fast is the center of mass of the two-stone system moving
A horizontal desk surface measures 2.08 m x 1.73 m. If Earth's magnetic field has magnitude 0.495 mT and is directed 64.8° below horizontal, what is the magnetic flux through the desk surface.
Since the circumference of a circle of radius r is 2p r, every time the center of mass moves a distance 2p r, the object rotates a full circle (2p radians). If this happens in a time T then. Combine these equations to find out an expression for ..
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