When a body moves in circular motion at constant speed the velocity and acceleration point in opposite directions.
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Q41: What is the proper abbreviation for 'kilohertz?'
A)kh
B)khz
C)Khz
D)KHz
E)kHz
Q42: What is the proper abbreviation for 'seconds?'
A)sec
B)There
Q43: Fifteen microseconds is
A)0.0000015 s.
B)0.000015 s.
C)0.00015 s.
D)0.015 s.
E)15000000
Q44: A racecar driver steps on the gas,changing
Q45: Two microcuries is
A)200,000 Ci.
B)0.0002 Ci.
C)0.00002 Ci.
D)0.000002 Ci.
E)0.00000002
Q47: Twenty milliseconds is
A)0.00002 s.
B)0.0002 s.
C)0.002 s.
D)0.02 s.
E)20000
Q48: Twenty kilometers is
A)200,000 m.
B)20,000 m.
C)2,000 m.
D)200 m.
E)0.02
Q49: A racecar goes around a 200 m
Q50: In expressions like Δv and Δt,Δ stands
Q51: The acceleration after starting from rest is
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