Physics, 17.12.2019 18:31 itscarterelliottt
Amassless spring hangs from the ceiling with a small object attached to its lower end. the object is initially held at rest in a position yi
such that the spring is at its rest length. the object is then released from yi
and oscillates up and down, with its lowest position being 10 cm below yi
(a) what is the frequency of the oscillation?
(b) what is the speed of the object when it is 8.0 cm below the initial position?
(c) an object of mass 300 g is attached to the first object, after which the system oscillates with half the original frequency. what is the mass of the first object?
(d) how far below yi is the new equilibrium (rest) position with both objects attached to the spring?
Answers: 3
Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
Answers: 3
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
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Physics, 22.06.2019 10:50
Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k
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Physics, 22.06.2019 17:00
If you put a helium-filled balloon in the refrigerator, what will happen?
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Amassless spring hangs from the ceiling with a small object attached to its lower end. the object is...
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