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A microwave transmitter emits electromagnetic waves of a singlewavelength. The maximum electric field 1.22 km from the transmitteris 6.74 V/m. Assuming that the transmitter is a point source,
a. Calculate the maximum magnetic field at this distance.
b. Calculate the total power emitted by the transmitter.
A copper wire is 6.00 m long and has a cross-sectional area of 1.00 multiplied by 10-4 m2. what is the maximum torque that can act on it
A 3 meter long cylindrical support beam (diameter 1 cm) increases in length by 3 mm. how much tension does the beam experience
A cylindrical capacitor consists of a solid inner conducting core with radius 0.200cm , surrounded by an outer hollow conducting tube. Calculate the outer radius of the hollow tube
Suppose 0.380 kg of water initially at 45.0°C is poured into a 0.300 kg glass beaker having a temperature of 25.0°C. Calculate the final equilibrium temperature of the system
three charges are fixed to an x y coordinate system. a charge of 22 microc is on the y axis at y 3.0 m. a charge of
A uniform thin rod of length 0.7 m and mass 3.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the bullet's speed just before impact
An orchestra plays a loud symphonic passage at an intensity level of 72dB while a very soft solo is only 35dB. What is the intensity ratio for these two sounds?
a 25 kg child on a 2m long swing is released from rest when the ropes of the swing make an angle of 25 degrees with the vertical, neglecting friction, find the childs speed at the lowest position
A 1.1-pF parallel plate capacitor has a potential difference of 12.0 V across it. The plates are 4.5 mm apart, and the space between them contains air. obtain the charge on the capacitor
A thin circular sheet of glass of diameter 3 meters is rubbed with a cloth on one surface and becomes charged uniformly. find the total excess charge on the surface of the glass disk
a circus performer stretches a tightrope between two towers. he strikes one end of the rope and sends a wave along it
A beam of light is emitted 8.2cm beneath the surface of a liquid and strikes the surface 7.2cm from the point directly above the source. what can you say about the index of refraction of the liquid
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