Can you give
an
example of a physical quantity
which cannot be measured?

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.