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A dish antenna having a diameter of 20.0 m receives (at normal incidence) a radio signal from a distant source, as shown in Figure P34.51. The radio signal is a continuous sinusoidal wave with amplitude Emax= 0.200 µV/m. Assume the antenna absorbs all the radiation that falls on the dish.
(a) What is the amplitude of the magnetic field in this wave?
(b) What is the intensity of the radiation received by this antenna?
(c) What is the power received by the antenna?
(d) What force is exerted by the radio waves on the antenna?
An intergalactic creature named Hugh travels the distance D given in Prob. 7 above in the time of 3.2 min. Find Hugh average speed
Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this energy to accelerate spaceships, then how many missions would be possible in one year
A commuter airplane starts from an airport and takes the routeshown in fig. p3.13. the plane first flies to city A, located 275km away in a direction 30.0 degrees north of east. Next it fliesfor 170.0 km in a direction of 20.0 degrees west of nort..
question- two identical objects each of rest mass m0 moving with equal but opposite velocities of 0.50c in the
Consider the bead threaded on a circular hoop of Example 7.6 (page 260), working in a frame that rotates by the hoop. Discover the equation of motion of the bead, and check that your result agrees with Equation (7.69). Using a free-body diagram, desc..
The purpose of this assignment is to study the achievements of Indigenous role models and identify their contributions to Australian society. Within this task students research the life stories of Indigenous role models and the ways in which they ..
A 54 kg ice skater is moving at 39 m/s when she grabs theloose end of a rope, the opposite end of which is tied to apole. What is the ratio of this force to her weight
A 1.80kg block slides on a rough horizontal surface. The block hits a spring with a speed of 2.50m/s, what is the force constant of the spring?
A straight horizontal wire carries a current of 3.55 ?A. A proton is moving above the wire in a direction parallel to it but opposite to the direction of the conventional current in the wire, How far is the proton above the wire
A 83-turn circular coil (radius = 37 cm) by a total resistance of 7.4 Ω is placed in a uniform magnetic field directed perpendicular to the plane of the coil. The magnitude of this field varies by time according to B = A sin (ωt), where the amplitude..
A cube is 1 cm X 1 cm X 1cm. It is cut 10 times along x,y,z, axis. What is the surface area and volume of each set of cubes made
A light wave has a 670 {\rm nm} wavelength in air. Its wavelength in a transparent solid is 420 {\rm nm}. What is the speed oflight in this solid, in m/s? What is the light's frequency in the solid, in Hz?
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