InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
44. A flat plate is moving normal to its plane through a gas under the action of a constant force F . The gas is kept at a very low pressure . The speed of plate v is much less than the average speed u of the gas molecules . Which of the following options is/are true? 1) at a later time the external force F balances the resistive force 2) the resistive force v experienced by the plate is proportional to v 3) the plate will continue to move with constant non-zero acceleration at all times 4) the pressure difference b/w the leading and trailing faces of the plate is proportional to uv |
| Answer» 44. A flat plate is moving normal to its plane through a gas under the action of a constant force F . The gas is kept at a very low pressure . The speed of plate v is much less than the average speed u of the gas molecules . Which of the following options is/are true? 1) at a later time the external force F balances the resistive force 2) the resistive force v experienced by the plate is proportional to v 3) the plate will continue to move with constant non-zero acceleration at all times 4) the pressure difference b/w the leading and trailing faces of the plate is proportional to uv | |