(5 points) Consider the following binary operations. For each operation, determine if the parallel prefix algorithm can be used to compute prefix sums of a sequence of n operands based on the given binary operation.
(a) op(a, b) = 2a + b
(b) op(a, b) = ab – (a + b)
(c) op(a, b) = Va2 + 62
(d) opla, b) = a × b (x is the vector cross-product in 3D) (Hint: For every ī, ã xã = 0, and axõ=0

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

A)-explain briefly the importance of standards in engineering design. b)- what is patent? c)-explain the relationship between these standards: b.s. and b.s.en d)- in engineering design concepts, types of loads and how they act are important factors. explain.