Physics, 19.10.2021 22:40 nathanbrockdac
Which of the following is true statement about speed?
a) Speed has no magnitude and direction
b) Speed has magnitude but no direction
c) Speed has both magnitude and direction
D) speed has magnitude but no direction
Answers: 3
Physics, 20.06.2019 18:04
The graph shown is a velocity-time graph of an object. what is the acceleration of the object from 6.0 to 10.0 seconds?
Answers: 1
Physics, 21.06.2019 22:50
Two horizontal plates with infinite length and width are separated by a distance h in the z direction. the bottom plate is moving at a velocity u. the incompressible fluid trapped between the plates is moving in the positive x-direction with the bottom plate. align gravity with positive z. assume that the flow is fully-developed and laminar. if the systems operates at steady state and the pressure gradient in x-direction can be ignored, do the following: 1. sketch your system 2. identify the coordinate system to be used. 3. show your coordinates and origin point on the sketch. list all your assumptions. 5. apply the continuity equation to your system. nts of navier stokes equations of choice to your system 7. solve the resulting differential equation to obtain the velocity profile within the system make sure to list your boundary conditions. check units of velocity 8. describe the velocity profile you obtain using engineering terminology. sketch that on the same sketch you provided in (1). 9. obtain the equation that describes the volumetric flow rate in the system. check the units.
Answers: 2
Physics, 22.06.2019 02:30
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
Answers: 2
Physics, 22.06.2019 02:30
Which feature of a heating curve indicates a change ofn state
Answers: 1
Which of the following is true statement about speed?
a) Speed has no magnitude and direction
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