Showing 211 to 220 of 328 Questions

Demonstrate that the quantity E2 p2c2 for a particle is an invariant, i.e. it has the same magnitude in all inertial reference frames. What is the magnitude of this invariant?
0126 
Derive the shape of the minimal surface discussed in Section 5.8, by demanding that a crosssectional “ring” (that is, the region between the planes x = x1 and x = x2) is in equilibrium; see Fig.
081 
Describe in words the motion of the graphed in Fig. 229.
093 
Describe in words the motion plotted in Fig. 228 in terms of v, a, etc.
11120 
Determine the speed of the boat with respect to the shore in Example 311.
0191 
Determine the stopping distances for a car with an initial speed of 95 km/h and human reaction time of 1.0s for an acceleration?(a) a = – 4.0m/s2(b) a = – 8.0 m/s2.
0282 
Does a car speedometer measure speed, velocity, or both?
0118 
Estimate (a) How long it took King Kong to fall straight down from the top of the Empire State Building (380 m high), and (b) His velocity just before “landing”?
0248 
Estimate the average acceleration of the car in the previous Problem (Fig 235) when it is in (a) First,(b) Third, and (c) Fifth gear.(d) What is its average acceleration through the first four gears?
0275 
Estimate the time between each photoflash of the apple in Fig 218 (or number of photoflashes per second). Assume the apple is a bout 10cm in diameter.
2964
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