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A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25\mu {\rm T} and a wavelength of 432{\rm nm} is traveling in the + x direction through empty space.
f = 6.94×1014 {\rm Hz}
What is the amplitude of the associated electric field?
The speed of the ball at the top of the circle is 12.9 m/s. The acceleration of gravity is 9.8 m/s2 . If the ball is released at the bottom of the circle, what is its speed upon release
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We have a container of a hot ideal monatomic gas. The volume of the container is 25 liters. determine the change of internal energy of the gas
An ideal gas initially at 20°C and 219 kPa has a volume of 4.70 L. It undergoes a quasi-static,, Find the heat added to the gas during the expansion.
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is -6.0 15) x 103 J, what is the speed of the skier
Calculate the direction of the average force on the ball during the contact . The magnitude of the average force is 4700N
A 5.60 uF parallel-plate air capacitor has a plate separation of 4.00 mm and is charged to a potential difference of 500V . Calculate the energy density in the region between the plates, in units of J/m^3
During normal beating, the heart creates a maximum 4.30 mV potential across 0.330 m of a person's chest, What is the maximum electric field strength created
A long straight wire carries a current I1 = 3.2 A and is a distance h = 12.2 cm from a rectangular current loop that carries a current I2 = 1.2 A, What is the force exerted by the current loop on the wire
A bar magnet is oriented with its magnetic dipole moment at 57.3° to the direction of a 0.0357-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
A force of 100 N is applied to a 50 kg mass in the direction of motion for a distance of 6.0 m, how much work is done by the varying force
A comet with a mass of 7.75 1011 kg strikes Earth at a speed of 26 km/s. Find the kinetic energy of the comet in joules
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