If you add 700 kJ of heat to 700 g of water at 70.0°C, how much water is left in the container? The latent heat of vaporization of water is 2.26 × J/kg and its specific heat is 4190 J/(kg ? K)
A) 429 g
B) 258 g
C) 340 g
D) 600 g
E) none
Answer: A
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a. 23.2° c. 32.3° b. 46.0° d. 38.4°
The price of gasoline goes up 6% on Monday night and then goes down 7% today. What is the net percentage change in the price of gasoline from Monday?
A. 1.0% B. 2.0% C. 1.4% D. -1.0%
A 70-kg stunt artist rides in a rocket sled which slides along a flat inclined surface. At an instant when the sled's acceleration has a horizontal component of 6.0 m/s2 and a downward component of 2.8 m/s2, what is the magnitude of the force on the rider by the sled?
A. 0.83 kN B. 0.98 kN C. 0.65 kN D. 0.68 kN E. 0.72 kN
Which statement is always correct when applied to a charge distribution located in a finite region of space?
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