What is a polygon with 7 sides is called?
What will be an ideal response?
Heptagon
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One advantage of DC electric braking is that _____.
a. it can be used to hold a suspended load b. solenoid-operated friction brakes are engaged c. the motor is stopped very gradually d. the motor can be stopped without having to use brake linings or drums
What is the value of angle A in degrees and minutes if cos A = 0.68875? Round the answer to nearest minute.
A. 44o 28' B. 46o 28' C. 56o 30' D. 46o 47'
Use the data of Problem 3.35 and Figure P3.35 and source transformations to determine .
The circuit shown in Figure P3.35 is a simplified DC version of an AC three-phase wye-wye (Y-Y) electrical distribution system commonly used to supply industrial loads, particularly rotating machines.
VS1 = VS2 = VS3 = 170 V
Rw1 = Rw2 = Rw3 = 0.7?
R1 = 1.9? R2 = 2.3?
R3 = 11?
a. Determine the number of non-reference nodes.
b. Determine the number of unknown node voltages.
c. Compute v'1, v'2, v'3, and v’n.
Notice that once v’n is known the other unknown node voltages can be computed directly by voltage division.
Which child requires a child restraint system?
a. A six-year old who is 4 feet 10 inches tall b. A seven-year old who is 4 feet 7 inches tall c. An eight-year old who is 4 feet 9 inches tall