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An electromagnetic plane wave at a certain location has an electric field pointed up which is given as a function of time as E = 54 V/m x sin (6x10^6 Hz x t). The magnetic field at the same location points south when the electric field points up. The wave described above is incident on a square piece of foil which is 3.6 m long on each side. If the wave is completely absorbed by the foil for 35 seconds, how much energy does the foil absorb? Assume the foil is set up in the south-up plane.
The intensity 18m from a source of sound is measured to be 10^-4W/m^2. Determine the intensity of the sound in decibels
A 13.5 micro F capacitor is connected to a power supply that keeps a constant potential difference of 26.0 V across the plates. By how much did the energy change during the insertion
A child on a freely rotating merry-go-round moves from near the center to the edge. Will the rotational velocity of the merry-go-round increase, decrease, or not change at all? Explain.
If you had an experimental set-up, where a wire with a linear mass density of 1 g/m was clamped at one end, at what frequency would you need to vibrate the wire
The Earth is showered with particles from space known as muons. What will be the radius of the muon's resulting orbit
One afternoon, you are playing on a wooden basketball court with a hula-hoop to amuse yourself. find the hoop's speed just before it hits the wall
The three charged particles in the figure below are at the vertices of an isosceles triangle (where d = 1.60 cm). Taking q = 8.20 µC, calculate the electric potential at point A
An ideal solenoid is constructed with 500 turns of wire of 5.00 mm radius. The wire has a cross sectional area of 3.0 x 10-8 m2, determine The voltage induced in the solenoid
Billiard ball A of mass = 0.130 moving with speed = 2.80 strikes ball B, initially at rest, of mass = 0.150. Consequently of the collision, ball A is deflected off at an angle of 28.0 with the speed = 2.00.
To investigate the structure of extremely small objects, such as viruses, the wavelength of the probing wave should be about one-tenth the size of the object for sharp images. If you use light of this wavelength, what would be the energy (in eV) of..
Wildlife biologists fire 20-g rubber bullets to stop a rhinoceros charging at 0.81m/s. What impulse does each bullet deliver
A +10uC charge is 20cm away from a -40uC charge. Detrmine the field of intensity
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