The Prehistory of Jazz. The Africanization of American Music. An elderly black man sits astride a large cylindrical drum. Using his fingers and the edge of his hand, he jabs repeatedly at the drum head--which is around a foot in diameter and probably made from an animal skin--evoking a throbbing pulsation with rapid, sharp strokes.
nope, efficiency o fa machine cannot be greater than 100%...theoretically it shows sometime that efficiency of a machine can be 100%, but practically it cannot be possible as â¦ there is some loss of energy is always involved in different ways. Answer   In order for a machine to be 100% efficient, the amount of energy going into it has to be precisely equal to the energy the machine is putting out-with nothing lost.
The total cost of the process (including the production costs) is also calculated. For answer sheet processing of this one testing program, 5 percent of the quality costs were due to prevention, 37 percent due to appraisal, 42 percent due to internal failure and 15 percent due to external failure.In terms of total expense, about 56 percent of the costs were cost-of-quality costs.any class participants didnât have experience in designing data collection and had to learn that skill. Once the data was collected, it was summarized in direct labor dollars. To assure comparability of the cost-of-quality results, we used 1.5 for each direct labor dollar to reflect the indirect costs of benefits.