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At one position and time, the electric field of an em wave in vacuum is 6.66 MV/m right and its magnetic field is 22.2 mT into the paper. Determine the corresponding Pointing vector (direction relative to the paper).
The nucleus 60Co decays by the emission of an electron ( B 2). (Energetic gamma rays also accompany this decay and are used for the treatment of cancer.) What is the resulting nucleus
An object has a volume of 3.29m^3 and a mass of 3000 kg. If the object were attached by a cable to the bottom of a swimming pool, what would be the tension in the cable
an 8.4 kg crate is pulled 4.8 m up a 30deg incline by a rope angled 18deg above the incline. the tension in the rope is
It has been proposed that large flywheels could be used to store energy. Consider a flywheel made of concrete (density 2060 kg/m3) in the shape of a solid disk, find what is the angular velocity of the flywheel
A three level laser has energy levels E 1=1.50 eV, E 2=2.50 eV, and E 3=3.50 eV. Level E 2 is the metastable state. What is the lasing wavelength
What is closing equilibrium temperature of the tin-water
A hot, 35-gram aluminum rivet is dunked into a tank containing 2.2 L of water to cool it. Calculate the original temperature of the rivet
1. a 10.6-kg iron block at 203acircdegc is quenched in an insulated 18.4-kg water bath initially at 18acircdegc. after
Compute an inductance of the sensor for air gaps
A spherical conducting shell has 12 microcoulombs of positivecharge inside on it. The radii of the shell are r(inner)=12 cm and r (outer)=2r(inner). A particle of -4 microcoulombs is placed at the center of the shell.
A bird watcher meanders through the woods, walking 0.261 km due east, 0.315 km due south, and 1.74 km in a direction 72.5 ° north of west. find the magnitudes of the bird watchers average velocity
A ball with mass m = 0.170 kg and kinetic energy K1 = 2.17 J collides elastically with a second ball of thesame mass that is initially at rest. find the kinetic energy of the first ball after the collision
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