Work: A 2.0-kg object is lifted vertically through 3.00 m by a 150-N force. How much work is done on the object by gravity during this process?
Fill in the blank(s) with the appropriate word(s).
-59 J
Physics & Space Science
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For an FCC crystal, which of the following x-ray (hkl) diffraction peaks is not present?
(a) (100) (b) (111) (c) (131) (d) (200)
Physics & Space Science
A 3.6 
C charge is moved from a position where its electric potential energy is 7.2 my to a position where its potential energy is 1.8 my. What is the potential at the first position?
A. 1500 V B. 2000 V C. -2000 V D. 3500 V E. -1500 V
Physics & Space Science
A certain ideal gas has a value of ? = 4/3. What is its molar specific heat at constant pressure?
A) 5R/2 B) 2R C) 3R D) 7R/2 E) 4R
Physics & Space Science
Most glasses and some minerals exhibit a type of fracture characterized by nested and curved crack surfaces. What term describes this property?
What will be an ideal response?
Physics & Space Science