A Ferris wheel, rotating initially at an angular speed of 0.16 rad/s, accelerates over a 7.0-s interval at a rate of 0.050 rad/s2 . What is its angular speed after this 7.0-s interval?
a. 0.46 rad/s
c. 0.51 rad/s
b. 0.85 rad/s
d. 1.2 rad/s
C
Physics & Space Science
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Because the Hubble constant equals 70 km/s/Mpc, a galaxy with a recession velocity of 4,900 km/s would be a distance of ____ Mpc from Earth
a. 0.014 b. 70 c. 4930 d. 4970 e. 343,000
Physics & Space Science
The stellar spectral sequence, in order of decreasing temperature, is
A) OBAFGKM. B) OFBAGKM. C) OBAGFKM. D) ABFGKMO. E) BAGFKMO.
Physics & Space Science
A(n) ______________ ridge system stretches through the major oceans of the world
Fill in the blank(s) with correct word
Physics & Space Science
Scientists use the metric system chiefly because it is more accurate than the English system
A) True B) False
Physics & Space Science