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A microwave transmitter emits electromagneticwaves of a single wavelength. The maximum electric field1.22 km from the transmitter is6.74 V/m. Assuming that thetransmitter is a point source,
a. Calculate the maximum magnetic field at this distance.
b. Calculate the total power emitted by thetransmitter.
A 17.0-mH inductor, with internalresistance of 22.0 Ω, isconnected to a 120-V rms source. If the average power dissipated in the circuit is 40.0 W, what is the frequency?
Light of wavelength 800nm is incident on a metallic surface. if the stopping potential for the photo-electrons ejected from the metal is 0.35 volts, find the work function for the metal and the longest wavelength incident light that will eject photo-..
Water drops from the nozzle of a shower onto the floor a distance d below. The drops fall at regular intervals of time, Find the location of the individual drops
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
A rifle with a weight of 40 N fires a 3.5 g bullet with a speed of 240 m/s. find the recoil speed of the man and rifle
Many stores have "security mirrors" mounted on ceilings or in corners so that employees can keep watch over large parts of the store, what is the magnification of the image
Three charges, +2.6 \mu C, -4.9 \mu C, and-7.2 \mu C, are located at (-0.21 m,0.12 m), (0.52 m, -0.35 m), and (-0.46 m,-0.34 m) respectively. What is the electric field at theorigin? Enter the x and ycomponents of the field separated by a comma.
A pile driver falls through a distance of 1.75m before hitting a pile. Find the velocity of the driver as it hits the pile
A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass including the instruments it carries is 15.0 kg. Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. N
A ray of light strikes a mirror at an angle of 35.8° to the normal. What is the angle that the reflected angle makes with the normal
An archer shoots an arrow with a velocity of 45m/s at an angle of 50 degrees with the horizontal. An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the least initial speed required to ..
A heat pump has a coefficient of performance of 3.70 and operates with a power consumption of 7.15 103 W. How much energy does it extract from the outside air
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