Which of the following is another term for widget?
A. thingamabob
B. gidget
C. gadget
D. sandbox
Answer: C
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A depth change of 10 metres/33 feet causes a pressure change of.
a. 1 bar/ata b. 2 bar/ata c. 3 bar/ata d. 4 bar/ata
Lenz's Law: A bar magnet is close to a solenoid, as shown in the figure. As viewed through the solenoid looking toward the magnet, what is the direction (clockwise or counterclockwise) of the current (if any) induced in the solenoid in each case?(a) The magnet is pushed toward the solenoid.(b) The magnet and solenoid both move to the right at 25 cm/s.
What will be an ideal response?
Heat is generated uniformly in the fuel rod of a nuclear reactor. The rod has a long, hollow cylindrical shape with its inner and outer surfaces at temperatures of Ti and To, respectively. Derive an expression for the temperature distribution.
GIVEN
• A long, hollow cylinder with uniform internal generation
• Inner surface temperature = Ti
• Outer surface temperature = To FIND
• The temperature distribution
ASSUMPTIONS
• Conduction occurs only in the radial direction
• Steady state prevails
SKETCH
Based on our current theory of Earth's formation, the water we drink comes from
A) ice that condensed in the solar nebula in the region where Earth formed.
B) chemical reactions that occurred in Earth's crust after Earth formed.
C) chemical reactions that occurred in Earth's core after Earth formed.
D) material left behind during the giant impact that formed the Moon.
E) comets that impacted Earth.