A cart is pushed to the right by a 10-N force. At the same time, a boy pushes it to the left with a 5-N force. The net force exerted on the cart is
A. 5 N to the left.
B. 10 N to the left.
C. 10 N to the right.
D. 5 N to the right.
Answer: D
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Export-substitution policies' purpose is to
A) expand exports. B) protect domestic infant industries. C) increase farm output. D) build schools.
A high water vapor pressure indicates a(n)
a. relatively large number of water vapor molecules in the air. b. relatively small number of water vapor molecules in the air. c. relatively high rate of evaporation. d. abundant supply of condensation nuclei in the air. e. relatively high rate of precipitation.
What percentage of China's major cities are already facing water shortages?
A. 5% B. 15% C. 33% D. 67% E. 100%
In an Af climate, what time of day is precipitation most likely?
A) Dawn B) Mid-morning C) Noon D) Mid-afternoon E) Midnight