Answer the following statement(s) true (T) or false (F)
1. 
for all vectors 
2. The only way a vector’s magnitude can be zero is if all its components are zero
1. TRUE
2. TRUE
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When sound passes from air into water
A) its wavelength does not change. B) its frequency does not change. C) its velocity does not change.
The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t, where t is in seconds
If the object has a velocity 1.00 m/s at time t = 1.00 s, what is the displacement of the object between time t = 2.00 s and time t = 4.00 s? A) 33.0 m B) 30.0 m C) 36.0 m D) 27.0 m
How fast (in m/s) is the Concorde moving if it reaches Mach 1.5? (The speed of sound in air is 344 m/s.)
a. 229 b. 516 c. 416 d. 728 e. 858
Jeff throws a ball straight up. For which situation is the vertical velocity zero?
a. on the way up c. on the way back down b. at the top d. none of the above