Physics, 05.02.2021 01:00 mwilliams457
In each of three trials of an investigation, a single force is applied to a mobile. Each time, the mobile acquires a different acceleration. The table shows the relationship
between the acceleration and the acting force.
Force (N) Acceleration (m/s)
1.2
4.8
0.7
2.8
1.6
6.4
Which phrase best describes a graph that would represent the relationship shown in the table? (1 point)
O a downward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis
O a downward-sloping line drawn on a graph with acceleration shown on the x-axis and force shown on the y-axis
o an upward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis
an upward-sloping line drawn on a graph with acceleration shown on the x-axis and force shown on the y-axis
Answers: 2
Physics, 21.06.2019 23:00
The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?
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I) a gas contained within a piston-cylinder assembly undergoes two processes, a and b, between the same end states, 1 and 2, where p1 = 10 bar, v1 = 0.1 m3 , u1 = 400 kj and p2 = 1 bar, v2 = 1.0 m3 , u2 = 200 kj: ' process a: process from 1 to 2 during which the pressure-volume relation is pv = constant. ' process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to state 2. kinetic and potential energy effects can be ignored. for each of the processes a and b, a) sketch the process on a p-v diagram. b) evaluate the work, in kj. c) evaluate the heat transfer, in kj.(ans : qb,12 = -65.0 kj)
Answers: 3
Physics, 23.06.2019 18:30
Describes how input voltage signals received by a computer are handled through a series of electronic logic circuits maintained in its programmed instructions. these instructions are used to change the input voltage signals, or data, into output voltage signals, or commands.
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In each of three trials of an investigation, a single force is applied to a mobile. Each time, the m...
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