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The polar ice caps contain about 2.48 x 10^19 kilogram of ice. This mass contributes negligibly to the moment of inertia of the earth because it is located at the poles, close to the axis of rotation. Find what would be the change in the length of the day if the polar icecaps were to melt and the water was distributed uniformly over the surface of the earth? (The moment of inertia of a spherical shell of mass m and radius r is (2mr^2)/3.
Find the angular velocity, in rad/s , of the earth due to its daily spin on its axis, the earth due to its yearly motion around the sun, and our moon due to its monthly motion around the earth
In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.4° from a free electron that is initially at rest. Calculate the wavelength of the incident photon
A 20 000 N truck is acted upon by the force that decreases its speed from 10.00 m/s to 5.0 m/s in 5.0 sec. What is the magnitude of force.
Sound exits a diffraction horn loudspeaker through a rectangularopening like a small doorway. A person is sitting at an angle off to the side of a diffraction hornthat has a width D of 0.0869 m.
a uniform 2.8 magnetic field points to the right a 2.19 m long wire carrying 21.8 a is placed at an angle of 23
A toroidal shaped magnetic material of radius, a, and cross sectional radius R has a small transverse gap cut into it of length l. The toroid is uniformly overwound with a coil of N loops carrying a current I. Show that for a ferromagnetic materia..
A 3.04 μF capacitor and a 7.84 μF capacitor are connected in series across a 17.0 V battery. What voltage would be required to charge a parallel combination of the same two capacitors to the same total energy?
Calculate the temperature at which a tung- sten filament that has an emissivity of 0.25 and a surface area of 6.6×10?5 m2 will radiate energy at the rate of 51Win a roomwhere the temperature is 26?C. The Stefan-Boltzmann constant is 5.6696 × 10?8 W/m..
One solenoid is centered inside another. The outer one has a length of 50.0cm and contains 6800 coils, Find the emf induced in the inner solenoid
A current of 14.0 mA is maintained in a single circular loop of 3.80 m circumference. A magnetic field of 0.610 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. Please have answer in mA · m2
A wave of amplitude Ai and wave number ki is incident on the junction of two strings. If the wave number in the second string is kt = 2ki , find the amplitudes of the transmitted and reflected waves.
What would be the equilibrium temperature when a 227 block of copper at 265 is placed in a 155 aluminium calorimeter cup containing 844 of water at 14.50.
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