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A race car starts from rest on a circular track of radius 578 m. The car's speed increases at the constant rate of 0.740 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.
(a) The speed of the race car (m/s)(b) Distance traveled? (m)(c) Total time elapsed. (s)
A star of mass 2.0 1028 kg that is 4.6 x 1020 m from the center of a galaxyrevolves around that center once every 4.6 x 108 years. estimate the number of stars in the galaxy
Two beams of planar wavefront, 633-nm coherent light, whose directions are 120o apart, strike a photographic emulsion of index 1.6. Sketch the arrangement, showing the orientation of the planes of constructive interference within the emulsion.
In an experiment designed to measure the strength of a uniform magnetic field produced by a set coils, find the angular frequency of revolution of the electrons
A +7.5 nC point charge and a -2.0 nC point charge are 3.0 cm apart. What is the electric field strength at the midpoint among the two charges?
A force acting on an object moving along the x axis is given by Fx = (14x ? 3.0x2) N, How much work is done by this force as the object moves from x = ?2.0 m to x = +1.0 m
A 5.3m wire with a mass of 82g is attached to the mast of a sailboat. If the wire is given a "thunk" at one end, it takes0.095s for the resulting wave to reach the other end. What is the tension in the wire?
The wavelength of a spectral line measured to he lambda on I Earth is found to increase by 50% on a far distant galaxy. What is the speed of the galaxy relative to earth?
The frames S and S' are in the standard configeration with relativevelocity 0.8c along Ox. What are the time intervals between the two events
Oxygen for Hospital patients is kept in special tanks, where the oxygen has a pressure of 65.0 atmospheres and a temperature of 15°C. The tanks are stored in a separate room, and the oxygen is pumped to the patients room, where it is administered ..
A generator is connected to a resistor and a 0.032-H inductor in series. Determine the resistance of the resistor in this circuit
A point charge of +6 μC is located at x = −2 cm, and a second point charge of −8 μC is located at x = 1 cm. Where must a third charge of +2 μC be placed so that the electric field at x = 0 cm is zero?
A marble is projected up along a 11 ° incline track at an initial speed of 2.2m/s and then coasts without friction. How far did the marble travel before it comes to its momentary rest point
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