Physics, 20.09.2019 21:20 ThetPerson
Astudent determined to test the law of gravity for himself walks off a skyscraper 900 ft high, stopwatch in hand, and starts his free fall (zero initial velocity). five seconds later, superman arrives at the scene and dives off the roof to save the student. (a) what must superman’s initial velocity be in order that he catch the student just before the ground is reached? (b) what must be the height of the skyscraper so that even superman can’t save him? (assume that superman’s acceleration is that of any freely falling body.)
Answers: 3
Physics, 22.06.2019 08:00, jhanes1983
Ms. hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.
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Physics, 22.06.2019 14:30, juanaaraujo1104
Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
Answers: 2
Physics, 22.06.2019 15:30, linnaefoos2183
This is the number of complete movements of a wave per second.
Answers: 1
Astudent determined to test the law of gravity for himself walks off a skyscraper 900 ft high, stopw...
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