A kiloampere ? hour is a unit of:
A) current
B) charge per time
C) power
D) charge
E) energy
D) charge
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From its definition and property values, calculate the coefficient of thermal expansion, ?, for saturated water at 403 K. Then compare your results with the value in the table.
GIVEN • Saturated water at 400 K FIND • The thermal expansion coefficient, ?, from its definition
Most of our knowledge of stellar evolution comes from studies of ________
Fill in the blank(s) with correct word
A 400-g piece of metal at 100°C is dropped into a cup containing 450 g of water at 15.0°C. The final temperature of the system is 40.0°C
What is the specific heat of the metal, assuming no heat is exchanged with the surroundings or the cup? A) 1960 J/(kg?K) B) 2830 J/(kg?K) C) 3420 J/(kg?K) D) 3780 J/(kg?K) E) 4280 J/(kg?K)
Simple pendulum A swings back and forth at twice the frequency of simple pendulum B. Which statement is correct?
A) Pendulum B is twice as long as A. B) Pendulum B is twice as massive as A. C) The length of B is times the length of A. D) The mass of B is times the mass of A. E) The length of A is times the length of B.