Physics, 07.11.2019 00:31 chloiesierra29
Atechnologically oriented diving coach wishes to analyze the vertical "push off" for members of the diving team. in order to do this, she simulates the diving process by having the athletes drop (free fall) from an adjustable height platform onto a "force-o-meter" which measures the vertical force the divers exert on the ground as a function of time. for a particular diver with a mass of 62.5 kg, she sets the adjustable height platform at 0.615 m and instructs the diver to free fall onto the "force-o-meter" and push off as she would in a dive. the computer readout shows that the diver was in contact with the meter for 0.750 s and that the force exerted on the platform may be described by the function: f(t) = (12,000 n/s)t β (16,000 n/s2)t2where the force will be in newtons when the time is seconds. determine the following.(a) speed of the diver when she lands on the meter (enter your answer to at least two decimal places.)m/s(b) vertical upward impulse the meter imparts to the diver (enter your answer to at least four significant figures.)n Β· s (c) speed of the diver when she leaves the meterm/s(d) height of the diver's jump after leaving the meterm
Answers: 3
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
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Physics, 22.06.2019 07:40
An object's buoyant force and weight mean the same thing.a. trueb. false
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Physics, 22.06.2019 16:20
Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus
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Atechnologically oriented diving coach wishes to analyze the vertical "push off" for members of the...
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