If the distance between a point mass and the pivot point is tripled, the rotational inertia of the object about that point is multiplied by

A. 9
B. 3
C. 1/3
D. 1/9


A. 9

Physics & Space Science

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After one _______________. of 18 years 11 1/3 days, the pattern of eclipses repeats

Fill in the blank(s) with correct word

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A person carries a mass of 10 kg and walks along the +x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person?

A) 0 J B) 20 J C) 200 J D) 1000 J E) None of the other choices is correct.

Physics & Space Science

For carbon dioxide, the van der Waals constants are: a = 0.364 J?m3/mol2, and b = 4.27 × 10-5 m3/mol

Assuming that the van der Waals equation holds at the critical point (where the p-V curve first becomes horizontal and has a point of inflection), what is the critical temperature of carbon dioxide? A) 513 K B) 592 K C) 304 K D) 1026 K E) 326 K

Physics & Space Science

A 5-kg piece of lead (specific heat 0.03 cal/g×°C) having a temperature of 80°C is added to 500 g of water having a temperature of 20°C. What is the final equilibrium temperature (in °C) of the system?

a. 79 b. 26 c. 54 d. 34 e. 20

Physics & Space Science