The buoyant force on an object is least when the object is
A) partly submerged.
B) submerged near the surface.
C) submerged near the bottom.
D) none of the above
Answer: A
You might also like to view...
A capacitor in an RC circuit is charged, storing energy 1.25 mJ. What is the time required to discharge this capacitor, as compared to the time required to discharge an identical capacitor in an identical RC circuit which has stored 2.5 mJ?
A. twice the time B. half the time C. the same time D. the answer depends on the values of R and C.
What is a void?
A. a part of the sky that astronomers cannot observe due to bright emission from interstellar dust B. another name for a dark nebula C. a part of the sky where no galaxies are visible to us because of obscuring dust in the milky way D. a region in the universe where there are almost no galaxies
X-rays of fixed wavelength yield a first-order maximum at a grazing angle of
At what angle would one expect to find the corresponding 3rd order maximum?
A. 
B. 
C. 
D. 
E. more information is needed
The vertical displacement of a string is given by y(x,t) = (6.00 mm) cos[(3.25 m-1)x – (7.22 s-1)t]. What is the period of the wave?
A) 7.22 s B) 1.93 s C) 0.870 s D) 0.308 s E) 0.139 s