Suppose that 2 people exercising in an enclosed room are each generating about 2.400 BTUs of body heat per
2 answers:
Answer:
0.002 BTUs per cubic foot heat is produced per hour
Step-by-step explanation:
Given:
Number of person = 2
Amount of heat produced by one person = 2.400 BTU
Dimension of the room = 20 ft x 12 ft x 10 ft
To Find:
How many BTUs per cubic foot do they produce in 1 hour = ?
Solution:
E =
Substituting the values
E =
E =
E = 0.002 BTU per cubic feet
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bii) The cross product of the coefficients of λ and μ will give the normal to the plane. The dot-product of that with the constant vector will give the desired constant.
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A common approach to determining the rank of a matrix is to reduce it to row echelon form. Then the number of independent rows becomes obvious. (It is the number of non-zero rows.) This form for k=-1 is shown in the picture.