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Question1
A blue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.6 m/s. A green car arrives at position of the stop-light 5 s after the light had turned green. If t = 0 while the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed required to catch up to blue car? Answer in units of s
Question2
An unmarked police car, travelling a constant 86, is passed by a speeder travelling 160. Precisely 0.90 after speeder passes the policeman steps on the accelerator if the police car's acceleration is 2.20, how much time elapses after police car is passed until it overtakes the speeder (thought moving at constant speed)?
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 20000 V. find the electron speed just before the electron strikes the screen
A 0.178 kg ball is released from rest at the top of a 57.9 m tall building. Calculate the de Broglie wavelength of the ball
A small round solid object beta equals 3/4 of mass m and radius r is released from rest at height h on a circular loop track of radius R. The objects rolls without slipping and the radius of the object is much less
An airtight box has a removable lid of area 1.00 10-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 7.00 104 Pa. The inside of the box is completely displaced. What is the magnitude of the force es..
A woman can read the large print in a newspaper only when it is at a distance of 65 cm or more from her eyes. What should be the refractive power (in diopters) of her glasses
In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 144 N/C downward at an altitude of 240 m and 177 N/C downward at an altitude of 390 m
A canoe has a velocity of 0.37m/s southeast relative to the earth. The canoe is on a river that is flowing 0.47m/s, Find the magnitude of the velocity of the canoe relative to the river
It is possible for a muon to be captured by a proton to form a muonic atom. A muon is identical to an electron except for its mass, Calculate the magnitude of the lowest energy state
Assume that, as lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears.
A certain protein molecule is hydrolyzed by an enzyme. How would you define this statement in your own words to someone who is not familiar with chemical terminology.
a popgun uses an ideal spring for which k=2000N/m. how high can the gun shoot a 5.0gram projectile
A dipole is formed by point charges +3.8 micro Coulomb and -3.8 micro Coulomb placed on the axis at (0.45 m, 0) and (-0.45m, 0), respectively. At what positions on the axis does the potential have the value 7.7×105 V?
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