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A research Van de Graaff generator has a 3.70 m diameter metal sphere with a charge of 1.01 mC on it.
(a) What is the electric potential on the surface of the sphere?___ V
(b) At what distance from its center is the potential 1.00 MV? ___ m
(c) An oxygen atom with three missing electrons is released near the surface of the Van de Graaff generator. What is its kinetic energy in MeV at the distance determined in part (b)? ____ MeV
A lens forms a real image, which is 214 cm away from the object and 1.67 times its length. What kind of lens is this, and what is its focal length
What is the difference in pitch among the above two scenarios if miv0 = 90 hr , the frequency of the police siren is 440 Hz and the air temperature is20°C? What is the dissimilarity in pitch in (b) if (hypothetically) v0is half the speed of sound?
A bowling ball of mass 7.1 kg and radius 9.0 cm rolls without slippingdown a lane at 5.2 m/s. Calculate its total kinetic energy
A railroad car of mass 2.58 104 kg is moving with a speed of 3.88 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
A ball is thrown vertically upward by an initial speed of 11 m/s. One second later, a stone is thrown vertically upward with an initial speed of 25 m/s. Discover the time it takes the stone to catch up with the ball.
The eccentricity,e, of the Moon's orbit is 0.0549 and the mean orbital radius rL=(ab)^1/2 is 384,100 km. Calculate the lengths of the principal axes a and b of the Moon's orbit. How far is the center of Earth from the center of the elliptical orbit? ..
The coefficients of static and kinetic friction between a 67 kg box and a horizontal surface are 0.56 and 0.32, respectively. Illustrate what is the acceleration of the object if a 335 N horizontal force is applied to the box?
A student of weight 660 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force FN on the student from the seat is 551 N.
A gamma-ray telescopes intercept a pulse of gamma radiation from magenta, a type of star with a spectacularly large magnetar field. Determine the magnitude of the rms magnetic field of the gamma-ray pulse
One mole of a monoatomic ideal gas is confined to a cylinder by a piston. The gas is kept in thermal contact with the reservoir held at temperature 27oC while the piston is slowly pushed in to such that the value is halved. Calculate the entropy ch..
a science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of
Calculate the angular momentum of a solid uniform sphere with a radius of 0.120 and a mass of 14.0 kg if it is rotating at 6.00 rad/s about an axis through its center
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