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A circular loop of wire can be utilized as a radio antenna. If a22.0-cm-diameter antenna is located 3.00 {\rm km} away from a 99.0-MHz source by a total power of 48.0 {\rm kW}, what is the maximum emf induced in the loop? (Suppose that the plane of the antenna loop is perpendicular to the direction of the radiation's magnetic field and that the source radiates uniformly in each directions.)
Give at least 3 examples from the electromagnetic spectrum (uses and dangers). Describe the three ways that electricity and magnetism are observed to interact. Describe how microwaves heat water.
A 7.75- g bullet from a 9-mm pistol has a velocity of 397.0 m/s. It strikes the 0.785- kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 10.15 cm
A flagpole of length 11 m and mass 23 kg is hinged at one end, where it is connected to a wall. Find the tension in the cable
A careful photographic survey of Jupiter's moon Io by the spacecraft Voyager 1 showed active volcanoes spewing liquid sulfur to heights of 70 km above the surface of this moon
A proton traveling at 26.0° with respect to a magnetic field of strength2.80 mT experiences a magnetic force of6.2 10-17 N. Compute the proton's speed. Compute its kinetic energy.
A metal must absorb radiation with a minimum frequency of 1.94 e15 Hz before it can emit an electron from its surface via the photoelectric effect, find the speed of the photo-electrons
Compute what speed must an electron have if its momentum is to be the same as that of an X-ray photon with a wavelength of 0.59 nanometer
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. Determine the acceleration of the woman
The air table is approximately 25 cm squared. If the incline has a rise of 1 cm over the distance, what is the maximum velocity up the slope
why must a water skier moving with constant velocity lean backwards? what determines how far back she must lean? draw a
an object and lens positioned to form a well-focused, inverted image on a viewing screen. What happens to the image on the screen
In the railroad freight yard, an empty freight car of massm rolls along a straight level track at 1.1 m/s and collides with an initially stationary,fully loaded boxcar of mass 3.9m.The two cars couple together upon collision.
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