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a) Calculate the speed of a proton that is accelerated from rest through a potential difference of 134V.
b) Calculate the speed of an electron that is accelerated through the same potential difference.
An electric motor rotating a workshop grinding wheel at a rate of 107 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 1.70 rad/s2.
Three charges are at rest on the z axis: q1 = ?6.41 mC at z = 3.60 m, q2 = ?1.20 mC at z = 0 m, What is the potential energy of this system
A fluid has a density of 1040kg/m^3. If it rises to a height of 1.8cm in a 1.0mm diameter capillary tube, what is the surface tension of the liquid
A beaker is filled to the 500 ml mark with alcohol. What increase in volume (in ml) the beaker contain when the temperature changes from 5°C to 30°C
An unstable particle called the pion has a mean lifetimeof 25 ns in its own restframe. What is the mean lifetime of the pions as measured in thelaboratory frame
A space traveler weighs 635 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
Travelling at the speed of 14.10 m/s, driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.650. What is the speed of automobile after 1.130 s have elapsed..
A cylinder of length L is resting at the base of a surface inclined at an angle alpha above the horizontal. The cylinder, with mass Mc and radius Rc, is free to rotate about an axis through its center. The coefficient of kinetic friction between t..
At the equator, the earth's field is essentially horizontal; near the north pole, it is nearly vertical. What current should you pass through the coil, to produce a net field in the center of the tank that has a dip angle of 62
Sources A and B emit long-range radio waves of wavelength 330 m, with the phase of the emission from A ahead of that from source B by 90°. find the magnitude of the phase difference at the detector
questionsmall terrestrial bodies lacked gravity force which depends on mass to keep initial atmosphere supplied by its
In a playground, there is a small merry-go-round of radius1.20 m and mass 120 kg. Calculate the rotational inertia of themerry-go-round about its axis of rotation
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