What is the net force inward acting on a spherical bathysphere of diameter 2.00 m at an ocean depth of 1000 m? (The pressure inside the bathysphere is, hopefully, 1 atm.) ?sea water = 1.02 × 10^3 kg/m3
a. 1.26 × 10^4 N
b. 1.26 × 10^6 N
c. 1.26 × 10^8 N
d. 1.26 × 10^10 N
e. 1.26 × 10^2 N
c
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How should the control volume method be implemented at an interface between two materials with different thermal conductivities? Illustrate with a steady, one-dimensional example. Neglect contact resistance.
GIVEN
• Interface between two different materials with different thermal conductivities
FIND
(a) Difference equation at the interface
ASSUMPTIONS
• No heat generation
SKETCH
SAE 50 oil at 70ºF flows through a 2 ft long copper tube of ¼ inch inside diameter. What must the pressure drop be through the tube if 10 lbm/min of oil is flowing through the tube?
What will be an ideal response?
Which of the following was the most imperfect region according to Aristotle's philosophy?
A) The center of the Sun B) The heavens C) Earth's surface D) Earth's center
Chemical evolution concentrated the various smaller molecules into the more stable forms
Indicate whether the statement is true or false