Perform the following unit conversions using units of length, mass, and time only to convert. show your work, do not just use google.

(a) 1 l to in.3
(b) 0.135 kw to ft.·lbf./s
(c) 304 kpa to psi
(d) 122 ft.3 to m3
(e) 100 hp to kw
(f) 1000 lbm. to kg

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.