The force of static friction between two surfaces is independent of the area of contact between the surfaces
Indicate whether the statement is true or false
TRUE
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The leaves of a positively charged electroscope diverge more when an object is brought near the knob of the electroscope. The object must be:
A) a conductor B) an insulator C) positively charged D) negatively charged E) uncharged
An object with a high specific heat will ________
a. lose its heat very fast b. decrease in temperature quite fast if removed from the heat source c. take considerably more heat to raise its temperature d. always be water
In the context of planetology, explain the heat of formation
What will be an ideal response?
A string with a mass per length of 2.00 gm/m is stretched with a force of 150 N between two points that are 0.500 m apart. The fundamental frequency of the stretched string is in tune with the fundamental frequency of an organ pipe filled with air and open at both ends. The velocity of sound in air at 0
is 331 m/s. What is the length of the organ pipe?
A. 50.2 cm B. 55.2 cm C. 57.5 cm D. 60.4 cm E. 65.3 cm