Agas flows along the x axis with a speed of v = 5x m/s and a pressure of p = 10x2 n/m2 , where x is in meters.
(a) determine the time rate of change of pressure at the fixed location x = 1 (i. e., for the particle currently at x=1).
(b) determine the time rate of change of pressure for a fluid particle flowing past x = 1. (you are fixed at x=1)
(c) explain without using any equations why the answers to parts (a) and (b) are different.

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

conservation of mass

mass before something happens = mass afterwards

the given statement is true.

sensory memory lasts for a fraction of seconds before the information is lost. it is the shortest -term memory and can be called as an element of memory. example: when we look at something and remember what it looks like, is just a second of observation. it degrades very quickly. it can also be considered as the process of perception rather than considering it as a memory.