When soup gets cold, it often tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. This is readily explained in terms of
A) the Bernoulli effect.
B) Archimedes Principle.
C) Pascal's Principle.
D) the decrease in the surface tension of water with increasing temperature.
E) the increase in the surface tension of water with increasing temperature.
E
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Choose the correct word(s) that make the statement true. The stars appear to rise and set from east to west, but really the sky is not moving and Earth is rotating from (north, south, east, west) to (north, south, east, west)
What will be an ideal response?
Solar prominences have twisted and looped shapes because of the solar magnetic field
a. True b. False Indicate whether the statement is true or false
Applications to Astronomy: The apparent brightness of a star is 1.0 × 10-12 W/m2 and the peak wavelength in its light is 600 nm. Assuming it is the same size as our sun and that it radiates like an ideal blackbody, estimate its distance from us, in parsecs. The constant in Wien's law is 0.00290 m ? K, and 1 parsec is equal to 3.09 × 1016 m. (Rsun = 6.96 × 108 m, ? = 5.67 × 10-8 
)
A. 1.2 pc B. 12 pc C. 120 pc D. 1200 pc
A violin with string length 32 cm and string density resonates in its fundamental with the first overtone of a 2.0-m organ pipe with one end closed and one end open. What is the tension in the string if the speed of sound in air is 344 m/s?
A) 110 N B) 4100 N C) 56 N D) 1000 N E) 450 N