For an angle of one degree, to how many significant figures do sin 
and 
(in radians) agree?
A. 3
B. 4
C. 5
D. 6
E. 7
B. 4
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Snell's Law: Light goes from material having a refractive index of n1 into a material with refractive index n2. If the refracted light is bent away from the normal, what can you conclude about the indices of refraction?
A. n1 > n2 B. n1 ? n2 C. n1 < n2 D. n1 ? n2 E. n1 = n2
An object is moving forward with a constant velocity. Which statement about this object MUST be true?
A) The net force on the object is zero. B) The net force on the object is in the forward direction. C) No forces are acting on the object. D) The acceleration of the object is in the forward direction.
If the net force on a body is zero the net torque ________ (is always, is not necessarily, cannot be) zero.
Fill in the blank(s) with the appropriate word(s).
At t = 0, a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with a constant acceleration of (2.0i - 4.0j) m/s2 . At the instant the x coordinate of the particle is 15 m, what is the speed of the particle?
a. 10 m/s b. 16 m/s c. 12 m/s d. 14 m/s e. 26 m/s