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The Sun has an orbital speed of about 220 km/s around the centre of the Galaxy, whose distnace is 28,000 light years. Estimate the total mass of the Galaxy in Solar masses.
Two coils are close to each other. The first coil carries a current given by I(t) = 4.70 e%u22120.025 0tsin(120%u03C0t), What is the mutual inductance of the coils
The K-shell ionization energy of copper is 8979 eV. The L-shell ionization energy is 951 eV. Determine the wavelength of the Kα emission line of copper. What should be the minimum voltage be on an x-ray tube with a copper target in order to see the K..
An electron in a vaccuum is first accelerated by a voltage of 10,000 volts, find the force of the electron due to the magnetic field
What is the magnitude of the current in the wire as a function of time?
A high-voltage transmission line with a resistance of 0.32 /km carries a current of 1000 A. What is the power loss due to resistance in the line
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0ª below the horizontal. Determine the work done by the normal force exerted by the table
1.50-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 5.60sin(2?t), FIND THE AMPLITUDE OF THE MOTION
What is the most amounts by which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass .
The verical displacement of a string is given by y(x,t)=(6.00 mm) cos[(3.25m^-1)x-(7.22s^-1)t]. What is the speed of the wave
A 1.55kg book is sliding along a rough horizontal surface. At point A it is moving at 3.31m/s , and at point B it has slowed to 1.41m/s. How much work was done on the book between A and B
An AC generator is to have a maximum output of 318 V. Each coil has an area of 0.145 m2 and a resistance of 15.7 ?, Find the maximum current induced in the coil
A brave child decides to grab on to an already spinning merry-go-round. What is the moment of inertia of the merry-go-round with respect to its central axis
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