Which of the following is not a vector quantity?
a. temperature
c. acceleration
b. velocity
d. displacement
A
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Thermal-electric solar power stations typically experience fluctuations in available sunlight throughout the day, but can use ________ to smooth out electrical power levels to their customers.
What will be an ideal response?
The atomic bomb that was dropped on Nagasaki in 1945 killed 140,000 people, helping to end World War II on the next day. It released energy equivalent to that of 20,000 tons of TNT explosive
How much mass was converted to energy when this took place? (1000 tons ? 4.3 × 1012 J) (Incidentally, modern H-bombs have energy yields 1000 times as much!)
Which of the following statements about the moons of the jovian planets is not true?
A) Some of the moons are big enough that we'd call them planets (or dwarf planets) if they orbited the Sun. B) One of the moons has a thick atmosphere. C) Many of the moons are made largely of ices. D) Most of the moons are large enough to be spherical in shape, but a few have the more potato-like shapes of asteroids.
Why do you suspect that for L > 0.6 m the free convection is unaffected by size?
What will be an ideal response?