Water enters a tube at 27°c with a flow rate of 450 kg/h. the heat transfer from the tube wall to the fluid is given as q', (w/m) - ax, where the coefficient a is 20 w/m2 and .x (m) is the axial distance from the tube entrance.

a) beginning with a properly defined differential control volume in the tube, derive an expression for the temperature distribution tm(x) of the water.

b) what is the outlet temperature of the water for a heated section 30 m long?

c) sketch the mean fluid temperature, tm(x), and the tube wall temperature, t,(x), as a function of distance along the tube for fully developed and developing flow conditions.

d) what value of a uniform wall heat flux, q", (instead of q's-ax), would provide the same fluid outlet temperature as that determined in part (b)? for this type of heating, sketch the temperature distributions requested in part (c).

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

my guess it 8 i'm probably wrong

answer:

the formula for amps is watts divided by volts. to use the chart, cover up the a with your finger and use the remaining chart calculation of w divided by v. using our sample panel data, 60 watts divided by 12 volts equals 5 amps.

explanation:

answer:

understeer generally occurs when the front tyres start slipping while you go around the curve.

explanation:

hope it !