Physics, 08.10.2019 14:00 casandraserrat375
Acylinder 0.170 m in diameter rotates in a lathe at 530 rpm . what is the tangential speed of the surface of the cylinder?
Answers: 3
Physics, 23.06.2019 05:40
What is the change in internal energy if 20 j of heat is released from a system and the system does 50 j of work on the surroundings? a. -70 j b. 30 j c. -30 j d. 70 j
Answers: 2
Physics, 23.06.2019 14:20
Working alone at its constant rate, pump x pumped out ¼ 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
Answers: 1
Physics, 23.06.2019 20:00
Asample of unknown material is more dense than copper. which could be the identity of the unknown material? a. lead only b. brick only c. lead or platinum only d. brick, platinum, or lead
Answers: 2
Physics, 23.06.2019 23:20
Learning goal: to understand that the charge stored by capacitors represents energy; to be able to calculate the stored energy and its changes under different circumstances. an air-filled parallel-plate capacitor has plate area a and plate separation d. the capacitor is connected to a battery that creates a constant voltage v.
Answers: 2
Acylinder 0.170 m in diameter rotates in a lathe at 530 rpm . what is the tangential speed of the su...
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