Four charges of equal charge +q are placed at the corners of a rectangle of sides a and b. What is the potential at the center of the rectangle if q = 2.0 ?C, a = 30. mm, and b = 40. mm?
What will be an ideal response?
2.9 × 106 V
Physics & Space Science
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The most widely used system of measurement in the world is the
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The position of an object at equal time intervals is shown below:
Which graph below correctly represents position versus time for this object?
A.
B.
C.
D.
E.
Physics & Space Science
All isotopes are unstable which have proton number greater than
A) 73. B) 12. C) 83. D) 78. E) 26.
Physics & Space Science
In order for two objects to have the same temperature, they must
a. be in thermal equilibrium. b. be in thermal contact with each other. c. have the same relative "hotness" or "coldness" when touched. d. have all of the properties listed above. e. have only properties (b) and (c) above.
Physics & Space Science