Physics, 23.03.2020 20:35 anabellabenzaquen
Find the speed at which Superman (mass=78.0 kg) must fly into a train (mass = 17863 kg) traveling at 75.0 km/hr to stop it. Running into the train at that speed would severely damage both train and passengers. Calculate the minimum time Superman must take to stop the train, if the passengers experience an average horizontal force of 0.580 their own weight. How far does the train then travel while being slowed to a stop?
Answers: 3
Physics, 23.06.2019 08:30
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Physics, 23.06.2019 14:20
Working alone at its constant rate, pump x pumped out ΒΌ of the water in a tank in 2 hours. then pumps y and z started working and the three pumps, working simultaneously at their respective constant rates, pumped out the rest of the water in 3 hours. if pump y, working alone at its constant rate, would have taken 18 hours to pump out the rest of the water, how many hours would it have taken pump z, working alone at its constant rate, to pump out all of the water that was pumped out of the tank? a) 6b) 12c) 15d) 18e) 24
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Physics, 23.06.2019 17:30
Which phenomena are transmissions of light? refraction, polarization, and scattering polarization, scattering, and reflection reflection, refraction, and absorption scattering, absorption, and refraction
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Find the speed at which Superman (mass=78.0 kg) must fly into a train (mass = 17863 kg) traveling at...
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