Astudent compares the fundamental resonating frequencies of two equal length pipes. pipe a is open on both ends. pipe b is open on one end and closed on the other. how does the frequency of pipe a measured at fa compare to the frequency of pipe b measured at fb?

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.