Your boss asks you to compare two sound waves and determine which has a higher frequency. wave a has a period o 4/100 second and wave b has a period of 1/7 second. what would you tell your boss?
a. wave a has the higher frequency. it's frequency is 4 hz
b. wave a has the higher frequency. it's frequency is 25 hz
c. wave b has the higher frequency. it's frequency is 42 hz
d. wave b has the higher frequency. it's frequency is 7 hz

How are calculation for velocity and speed different

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

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.