The change in the momentum vector is in the direction of the net force
Indicate whether the statement is true or false
TRUE
You might also like to view...
The volume of matter is due mostly to its
A) protons. B) electrons. C) both of these
Explain the large-impact hypothesis
What will be an ideal response?
A miniature heat sink heat exchanger is constructed with circular cross section channels (similar to that in Example 7.4), each of which has a diameter of 3.0 mm, drilled through a rectangular block. Cooling water at 20°C flows at the rate of 0.5 kg/h through each circular pipe, which has a constant surface temperature of 80°C. Assuming fully developed velocity and temperature distribution conditions, determine the length of the drilled pipe if the outlet water temperature is 60°C. Also, based on your calculations, verify the fully developed condition assumption.
GIVEN • Heat exchanger constructed with circular cross section channels. • Diameter of channel (Di)= 3 mm = 3*10-3 m • Cooling water inlet temperature (Tin)= 200C • Cooling water flow rate (m• )=0.5 kg/h = 1.39*10-4 kg/s • Cooling water outlet temperature (Tout)= 600C • Surface temperature(Ts)=800C FIND (a) Length of the drilled pipe. (b) Verify fully developed condition assumption PROPERTIES AND CONSTANTS or Water at 60°C: Density (?) = 982.8 kg/m3 Specific heat (cp) = 4182.8 J/(kg K) Thermal conductivity (k) = 0.657 W/(m K) Absolute viscosity (?) = 483.7 × 10–6 (Ns)/m2 Prandtl Number (Pr) = 3.02
Who proposed the cylindrical model of earth?
What will be an ideal response?