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A positively-charged object with a mass of 0.177 kg oscillates atthe end of a spring, generating ELF (extremely low frequency) radiowaves that have a wavelength of 5.86 x 107 m. Thefrequency of these radio waves is the same as the frequency atwhich the object oscillates. What is the spring constant of the spring?
a hockey player wants to pass the puck to his team mate. the puck needs to go a distance of 30 meters before coming to a rest. what initial velocity should be given to the puck
an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley, What are the masses of each disk
Consider a refridgerator in a standard home, where the temperatures are 22 degrees Celsius in the home and the refridgerator is kept slightly above freezing, what is the total change of entropy for the problem
An electron with a speed of 4.00×10^6 m/s , collides with an atom. What is the speed of the electron after the collision
A silver medallion is sealed within a transparent block of plastic. How far below the top surface would the medallion appear if the observer (not wearing goggles) and the block were under water
The isotope 218 84 Po (218.008965 u) can decay by eitheralpha or beta emission. What is the energy release in each case
Venus has a mass of 4.87 1024 kg and a radius of 6.05 106 m. Assume it is a uniform solid sphere. What is the rotational kinetic energy of Venus on its axis
what is the horizontal distance x between the two balloons.
An ice skater has a moment of inertia of 2.5 kg*m2 when his arms are outstretched and a moment of inertia of 1.0 kg*m2, what will his angular speed be when they are tucked in
A 200 keV electron strikes a copper target and is brought to rest producing a single X-ray photon. What is the Compton scattering angle relative to the direction of the incident X-ray
A box of books weighing 327 N is shoved across the floor by a force of 471 N exerted downward at an angle of 35° below the horizontalIf μk between box and floor is 0.52, how long does it take to move the box 4.80 m starting from rest.
The upper end of a 3.20m--long steel wire is fastened to the ceiling, and a 58.0kg- object is suspended from the lower end of the wire, What is the mass of the wire
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