Answer to: A bicyclist travels at a constant speed of 7 m/s. What is the total mass of the bicycle and the boy when the total momentum is 490...
In China, ordinary trains are defined as trains traveling at a speed under 160 km/h. With their low fares (about half of high-speed train's second class) and big capacity, these trains are widely popular too. One notable feature of these trains is their military green shells, so that ...
When its speed is 7.3 m/s, what is the rate at which the force is doing work? An object with a mass of 50 \ kg slides down at a constant speed of 30 an inclined surface having the friction coefficients k = 0.2 and ...
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examples indicate that for a high speed train composed of a series of cars traveling over a multi-span continuous beam, the train-induced resonance on the bridge takes place at a rather high speed, but the bridge-induced resonance on the train cars takes place at a much lower speed.doi...
e-mail had been a big time waster for me in the past because it was a constant interruption, causing me to lose focus on the task at hand, he says. since determined to check his e-mails only twice a day, gramm says he has become much more efficient. if people want to get more ...
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