Physics, 14.09.2019 03:30 KaylaMaria
Ablacksmith drops a 550 °f piece of iron into a vat of 75 °f water in order to cool it to 100 °f. how many kilograms of water are needed per kilogram of iron? assume all the thermal energy from the iron is transferred to the water and none of the water evaporates. the specific heats of water and iron are 4186 j/kg×°c and 448 j/kg×°c, respectively.
Answers: 3
Physics, 22.06.2019 00:00
Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.
Answers: 2
Physics, 22.06.2019 02:30
Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.
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Physics, 22.06.2019 07:30
Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
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Physics, 22.06.2019 17:40
You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.
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Ablacksmith drops a 550 °f piece of iron into a vat of 75 °f water in order to cool it to 100 °f. ho...
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