Physics, 18.07.2019 20:30 gbprulesmile
A125-g metal block at a temperature of 93.2 °c was immersed in 100. g of water at 18.3 °c. given the specific heat of the metal ( s = 0.900 j/g·°c), find the final temperature of the block and the water
Answers: 3
Physics, 22.06.2019 23:00
Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.
Answers: 1
Physics, 23.06.2019 00:20
The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
Answers: 2
Physics, 23.06.2019 05:00
Definition: this is the weighted average of all of the isotopes of an element.
Answers: 1
Physics, 23.06.2019 14:20
Working alone at its constant rate, pump x pumped out ¼ of the water in a tank in 2 hours. then pumps y and z started working and the three pumps, working simultaneously at their respective constant rates, pumped out the rest of the water in 3 hours. if pump y, working alone at its constant rate, would have taken 18 hours to pump out the rest of the water, how many hours would it have taken pump z, working alone at its constant rate, to pump out all of the water that was pumped out of the tank? a) 6b) 12c) 15d) 18e) 24
Answers: 1
A125-g metal block at a temperature of 93.2 °c was immersed in 100. g of water at 18.3 °c. given the...
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