Calculate the effective resistance between P and Q in the diagram below.
A. 0.75Ω B. 4.00Ω C. 5.00Ω D. 7.00Ω Correct Answer: Option B B. 4.00Ω Explanation R = ½ + ½ +3 = 1+3 =4ΩThe diagram below illustrates three forces acting on an object at point O. If the object is in equilibrium, determine the magnitude of the force P.
A. 10.5N B. 11.0N C. 17.3N D. 20.0N Correct Answer: Option D D. 20.0N Explanation 10 – P sin 30 = 0 10 – P x 0.5 = 0 P = 20NThere is always an uncertainty involved in any attempt to measure the position and momentum of an electron simultaneously. This statement is known as the?
A. de Broglie’s law B. Heisenberg uncertainty principle C. Franck-Hertz experimental law D. wave-particle paradox Correct Answer: Option B B. Heisenberg uncertainty principleA dry plastic comb used in combing hair was found to attract pieces of paper and dust. The most probable explanation for this phenomenon is that the comb has been given?
A. magnetization by induction B. electric charges by induction C. electric charges by conduction D. electric charges by friction Correct Answer: Option D D. electric charges by frictionProducts
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