Cracking the SAT Physics Subject Test
marvins-underground-k-12
(Marvins-Underground-K-12)
2020-11-25 20:10:37 UTC
#1
CHAPTER 7 DRILL
C By combining the equation for centripetal acceleration, ac = v^2 /r, with v =
rω, we find
D The torque is τ = rF = (0.20 m)(20 N) = 4 N • m.
D
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