Which of the following is the correct relationship between the thermodynamic calorie (cal) and the nutritional calorie (Cal)?
A) 1 cal = 1000 Cal
B) 1 cal = 1000 Cal
C) 1 Cal = 100 cal
D) 1 Cal = 1000 cal
D
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The amplitude of a particular wave is 1 m. The top to bottom distance of the disturbance is
A) 0.5 m. B) 1 m. C) 2 m. D) none of the above
Levees are artificial, not natural formations
Indicate whether this statement is true or false.
Major Atlantic hurricanes typically
A) are unaffected by midlatitude westerly winds. B) are affected by midlatitude westerly winds early in their lifetime. C) are affected by midlatitude westerly winds late in their lifetime. D) are affected by midlatitude westerly winds both early and late in their lifetime.
A 2500-N pile driver ram falls 10 m to drive a post 0.1 m into the ground, which means that the average force on the post is
A. 2,500,000 N. B. 2500 N. C. 250,000 N. D. 25,000 N.