In composition, the ________ planets have rocky materials like the asteroids
Fill in the blank(s) with correct word
terrestrial
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Compared to the distance between Earth and Mars, the distance between Jupiter and Saturn is
A) about the same. B) much larger. C) much smaller. D) just slightly less.
Two point charges of values +2.0 and +5.5 ?C, respectively, are separated by 0.50 m. What is the potential energy of this 2-charge system? (ke = 8.99 × 10^9 N?m2/C2)
a. +0.50 J b. ?0.20 J c. +0.20 J d. ?0.41 J e. +0.41 J
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N and the vertical height of the stairs is 20 meters, the person's power output is __________
Fill in the blank(s) with correct word
A 200-g metal container, insulated on the outside, holds 100 g of water in thermal equilibrium at 22.00°C
A 21-g ice cube, at the melting point, is dropped into the water, and when thermal equilibrium is reached the temperature is 15.00°C. Assume there is no heat exchange with the surroundings. For water, the specific heat is 4190 J/kg • K and the heat of fusion is 3.34 × 105 J/kg. The specific heat for the metal is closest to A) 3850 J/kg ? K. B) 2730 J/kg ? K. C) 4450 J/kg ? K. D) 4950 J/kg ? K. E) 5450 J/kg ? K.