What type of flame is produced when about 50 percent of the required combustion air is mixed with natural gas prior to ignition?
a. A cool flame
b. A yellow flame
c. A hard flame
d. A blue flame
d. A blue flame
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Probability of Error for complementary signals as function of ?N. The following worksheet specifies a 10-sample binary data signal s1 in B4:B13. A random transmitted bit Dt is computed in B1. The transmitted signal sTi (in C4:C13) = si if Dt=1 and =-si if Dt=0. The Gaussian noise sequence Ni SD ?N is specified in F1. The detected signal Xi is computed in E4:E13. The matched processor component siXi is computed in F4:F13, and the matched processor output V is computed in F15. The detected bit Dr is computed in D1.
The probability of error is estimated by computing the ratio of errors to transmitted data in I5 as
the noise ?N varies from 0 to 14?? in steps of ?? specified in I1. The total number of data bits to
be transmitted nT is specified in I2. The number of transmissions accomplished in shown in I3
and the number of errors in I4. Three VBA Macros are present:
? ResetCS resets the counts in I3 and I4.
? XmitCS increments the number of transmissions and, if an error occurs, increments the
error count.
? AutoCS computes the P[error] for nT transmissions as ?N varies and displays the results in
H8:I15.
a. What is the formula that computes Dt
in B1?
b. What is the formula that computes the transmitted signal sT2 in C6?
c. What is the formula that computes the noise component N2 in D6?
d. What is the formula that computes the detected signal X2 in E6?
e. What is the formula that computes the processor component s2X2 in F6?
f. What is the formula that computes the processor output V in F15?
g. What is the formula that computes Dr
in D1?
h. What is the formula that computes P[error] in I6 that produces 0 for #mits = 0?
i. Compose ResetCS.
j. Compose XmitCS.
k. Compose AutoCS.
Calculate the reversible work done in compressing 
of mercury at a constant temperature of 32(°F) from 1(atm) to 3000(atm). The isothermal compressibility of mercury at 32(°F) is:
Loose clothing or long hair can become dangerous around moving engine parts because they can get caught and pull body parts into harm's way.
Answer the following statement true (T) or false (F)
Why could it be a problem to start a motor in fast speed mode?
What will be an ideal response?