Physics, 27.06.2019 01:20 selenaK9514
You are conducting an experiment inside a train car that may move along level rail tracks. a load is hung from the ceiling on a string. the load is not swinging, and the string is observed to make a constant angle of 45 degree with the horizontal. no forces other than tension and gravity are acting on the load. which of the following statements are correct?
(a) the train is an inertial frame of reference
(b) the train is not an inertial frame of reference
(c) the train may be instantaneously at rest
(d) the train may be moving at a constant speed in a straight line
(e) the train may be moving at a constant speed in a circle
(f)the train must be speeding up
(g) the train must be slowing down the train must be accelerating
Answers: 2
Physics, 22.06.2019 09:30
For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap
Answers: 1
Physics, 22.06.2019 12:30
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5Γ103 j and the energy transferred thermally out is 99.4Γ103 j. there are 1.5Γ1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1β2 b. 2β3 c. 4β1 d. 1β2 and 4β1 e. none of the above
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Physics, 22.06.2019 12:30
Write a full page that sumerizes thermodynamics itβs from the website visionlearnig
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Physics, 22.06.2019 14:40
An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
Answers: 1
You are conducting an experiment inside a train car that may move along level rail tracks. a load is...
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