The two jovian planets that contain the highest proportions of hydrogen compounds are
A. Saturn and Neptune
B. Jupiter and Neptune
C. Jupiter and Saturn
D. Saturn and Uranus
E. Uranus and Neptune
F. Jupiter and Uranus
Answer: E. Uranus and Neptune
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What does this diagram represent?
A) a particle and antiparticle colliding and converting all their mass into photons B) two photons spontaneously turning into a particle and an antiparticle C) a blue electron and a red electron turning into to pink light rays D) a particle of ordinary matter and a particle of dark matter colliding and becoming two photons of dark energy
Glycerin, with a viscosity of 1.50 Ns/m2, is flowing with an average speed of 1.20 m/s through a tube that has a radius of 5.00 mm and is 25.0 cm long. What is the drop in pressure?
A) 144 kPa B) 45.8 kPa C) 72.0 kPa D) 76.3 kPa E) 129 kPa
The heat transfer rate from hot air by convection at 100°C flowing over one side of a flat plate with dimensions 0.1-m by 0.5-m is determined to be 125 W when the surface of the plate is kept at 30°C. What is the average convective heat transfer coefficient between the plate and the air?
GIVEN
• Flat plate, 0.1-m by 0.5-m, with hot air flowing over it
• Temperature of plate surface (Ts) = 30°C
• Air temperature (T?) = 100°C
• Rate of heat transfer (q) = 125 W
FIND
• The average convective heat transfer coefficient, hc, between the plate and the air
ASSUMPTION
• Steady state conditions exist
SKETCH
Which of the following statements best describes the Franck-Hertz experiment?