In which situation is maximum work considered to be done by a force?
a.
the angle betwe...
Physics, 24.12.2019 13:31 mikemurray115
In which situation is maximum work considered to be done by a force?
a.
the angle between the force and displacement is 180º.
ов.
the angle between the force and displacement is 90°.
c.
the angle between the force and displacement is 60°.
d.
the angle between the force and displacement is 45°.
e.
the angle between the force and displacement is 0°.
Answers: 1
Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
Answers: 3
Physics, 22.06.2019 20:30
The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?
Answers: 2
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