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At what speed does a clock move by respect to an observer that measures it to run at one-sixth the rate of an identical clock at rest by respect to the observer?
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
To charged dust particles exert a force of 3.2 * 10-2N on each other. What will be the force if they are moved so they are only 1/8 as far apart?
Electrons are ejected from a certain metallic surface with speeds ranging up to 4.2 105 m/s when light with a wavelength of ? = 615 nm is used. What is the work function of the metal?
On a clear day at a certain location, a 123-V/m vertical electric field exists near the Earth's surface. Compute the energy density of the magnetic field
Two parallel plates of area 51 cm.^2 have equal but opposite charges of 4.10E-07 C. Within the dielectric material filling the space among the plates, the electric field is 3.60E+05 V./m. Find the dielectric constant of the material.
During an acceleration, the angular speed of an engine increases from 850 rpm to 2750 rpm in 4.4 s. What is the average angular acceleration of the engine
An object acted on by three forces moves with constant velocity. Find the direction and magnitude of the third force acting on the object
The coil wand pendulum starts swinging with an angle of 30 degrees with the vertical. After it passes through the magnetic gap, What is the energy lost by the pendulum
the atomic mass of lithium-6 is 6.015123 u. how much energy is required to completely separate the nucleons in a
the binding energy for chromium metal is 4.37 ev. what wavelength of radiation must be used to eject electrons with a
q1. one reasonable design goal for an imaging system is to match the air disk diameter to the detector size. that
the decibel level of the noise from a jet aircraft is 130 db when measured 19.8 m from the aircraft. how much sound
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