How many significant figures are in 120.07?
A) 6
B) 5
C) 4
D) 3
E) 2
B
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Which should have the higher thermal conductivity, a single-crystal gas-turbine blade or a polycrystal turbine blade? _____________
Fill in the blank(s) with the appropriate word(s).
On this diagram of the celestial sphere, the numbered point(s) that have declination 0ยบ are
A) 1 and 3. B) 1 only. C) 2 only. D) 2 and 4.
The Sun's location in the Milky Way Galaxy is ________
A) in the galactic disk, roughly halfway between the center and the outer edge of the disk B) in the halo of the galaxy, about 28,000 light-years above the galactic disk C) very near the galactic center D) at the very outer edge of the galactic disk
The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. A racecar driver steps on the gas, and his racecar travels 20 meters in 2 seconds starting from rest. The acceleration of the racecar is
a. 0 d. 10 m/s2 b. 5 m/s2 e. 20 m/s2 c. 9.8 m/s2