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(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s.7 To get the distance between to the epicenter of the quake, they compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic wave from underground detonations of nuclear bombscan be used to locate the test site and detect violations of test bans Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves).
Create a visual display for a tennis ball rolling horizontally along a table and as it goes off the table. Sketch and label all forces acting on the ball in as a minimum three different locations of its motion.
A space traveler weighs 535 N on earth. What would the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth.
What is the largest wavelength that will give constructive interference at an observation point 171 from one source and 295 from the other source.
A circular wire loop of radius 13cm carries a current of 3.66 A. It is placed so that the normal to its plane makes an angle of 34.8° with the uniform magnetic field of magnitude 9.70 T.
Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (n=1.33). The Joker stands gloating at the edge of the pool.
A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.75 km/hr. The child is 0.560 km from shore and 0.750 km upstream of a boat landing when a rescue boat sets out. If the boat proceeds at its maximu..
A convex Lens of focal length 18 cm is used as the magnifying glass. At what distance from a tiny insect should you hold this lens to get a magnification of +3.00.
What is speed of the wind what is coefficient of static friction
On another planet the simple pendulum consisting of a 0.154 kg mass suspended on a 1.20 m long string has a period of 3.860 seconds. What is acceleration on this planet.
A thin soap film (n = 1.33) has the uniform thickness. When white light strikes the film at normal incidence, blue light (b = 440 nm) is constructively reflected.
A boat moves through the water of a river at 10-m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 1.6-m/s.
The stairs are 83 long and inclined at the angle of 31. If a player has a mass of 87, estimate his average power output on the way up. Overlook friction and air resistance.
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