The main parts of the Milky Way Galaxy are the disk, the bulge, and the halo.
Answer the following statement true (T) or false (F)
True
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If the magnetic field from a current-carrying long straight wire has a magnitude 
at a distance d, what is the magnitude of the field at a distance 2d?
A. also 
B. 0.707
C. 0.693
D.
/2
E. 
/4
An architect wants to use glass in a highly tensile stressed critical application on the exterior of a building, and you are asked to select a suitable material. The best solution for this request is to:
(a) Use tempered glass (b) Flame treat the outer surface of the glass to eliminate all scratches and cracks (c) Use the highest strength glass available (d) Suggest a redesign with another material
A 100-g sample of a certain substance undergoes a transformation of some kind that releases 20,000 J of energy. What kind of transformation is this likely to be?
A. A temperature change B. A phase change C. A chemical reaction D. A nuclear reaction E. It is impossible to guess.
A ball is falling toward the ground. Which of the following statements are false?
a) The force that the ball exerts on the Earth is equal in magnitude to the force that the Earth exerts on the ball. b) The ball undergoes the same acceleration as Earth. c) The magnitude of the force the Earth exerts on the ball is greater than the magnitude of the force the ball exerts on the Earth.
1. Statements a and b are false. 2. Statements a, b, and c are all false. 3. Statements a and c are false. 4. Statements b and c are false.