When an object is in translational equilibrium, which of these statements is not true?
A. the vector sum of the forces acting on the object is zero
B. the object must be stationary
C. the object has a constant velocity
D. the speed of the object is a constant
B. the object must be stationary
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__________ is spread throughout the supply chain and includes everything from raw material to work in process to finished goods that are held by the manufacturers, distributors, and retailers in a supply chain.
Fill in the blank(s) with the appropriate word(s).
Astronomers expect that due to friction and collisions, the particles in Jupiter's ring are slowing down and will eventually spiral into the planet.
Answer the following statement true (T) or false (F)
A 2.0-C charge moves with a velocity of (
m/s and experiences a magnetic force of 
N. The x component of the magnetic field is equal to zero. Determine the z component of the magnetic field.
A. ?3.0 T B. +3.0 T C. +5.0 T D. ?5.0 T E. +6.0 T
A light ray in material 1 goes into material 2. The angle of incidence in material 1 is 40.0? and the angle of refraction in material 
and the angle of refraction in material 2 is 
If the index of refraction of material 1 is 1.60, what is the index of refraction of material 2?
A. 3.20 B. 2.00 C. 1.88 D. 1.41 E. 1.20