Physics, 28.04.2021 20:10 MathChic68
Schopenhauer thought that treating others with compassion was one of the few ways to make the world better.
A. True
B. False
Answers: 3
Physics, 21.06.2019 22:50
A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!
Answers: 1
Physics, 22.06.2019 18:30
Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?
Answers: 3
Physics, 22.06.2019 18:50
8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.
Answers: 3
Physics, 23.06.2019 02:00
Emergent properties of living systems are defined as properties that .
Answers: 3
Schopenhauer thought that treating others with compassion was one of the few ways to make the world...
Social Studies, 30.01.2020 15:04
Mathematics, 30.01.2020 15:04
Biology, 30.01.2020 15:04
Health, 30.01.2020 15:04
Social Studies, 30.01.2020 15:04
Mathematics, 30.01.2020 15:04
Mathematics, 30.01.2020 15:04
Mathematics, 30.01.2020 15:04
History, 30.01.2020 15:04
Physics, 30.01.2020 15:04
History, 30.01.2020 15:04
Mathematics, 30.01.2020 15:04