Find speed of spaceship as measured by earth observer
A spaceship of proper length 296 m takes 0.80 µs to pass an Earth observer. Determine the speed of this spaceship as measured by the Earth observer.
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Assume that the Earth-Moon (center-to-center) distance is 3.82 multiplied by 108 m and Earth's radius is 6.37 multiplied by 106. By what percent does the Moon's gravitational pull on you increase?
A coil with magnetic moment 1.45 is oriented initially with its magnetic moment antiparallel to a uniform magnetic field of magnitude 0.845.
Langdon Winner says, "It is clear that in the decades to come a great many things like telephone answering machines and automatic bank tellers will become, in effect, members of our society" (Winston and Edelbach 85). He also suggests that we
A truck driver travels three-fourths the distance of his run at one velocity (v) and then completes his run at one half his original velocity (1/2v). What was the trucker's average speed for the trip?
Standing on a sidewalk, you hear a frequency of 560 Hz from a siren of an approaching ambulance. After the amblance passes, you hear a frequency of 480 Hz. Find the speed of the ambulance.
Imagine that a colleague is engaging in illegitimate political behavior toward you. What steps might you take to reduce or eliminate this behavior?
Determine the tangential and centripetal components of the net force exerted on a car (by the ground) when its speed is 38 m/s, and it has accelerated to this speed from rest in 9.5 s on a curve of radius 370 m. The car's mass is 1000 kg.
Does one who kills another "deserve" to die? Why or why not? Are there circumstances that would change your answer? Make two lists (perhaps using a table with two columns).
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