Answers: 2
Physics, 21.06.2019 20:30
Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)
Answers: 2
Physics, 22.06.2019 14:00
Ascientific blank must be testable and capable of being proven false?
Answers: 1
Physics, 22.06.2019 16:30
Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
Physics, 22.06.2019 18:00
Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly
Answers: 2
If energy efficiency is improved, the cost of energy would decrease and more coal would be availabl...
Biology, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
English, 11.03.2021 14:00
Biology, 11.03.2021 14:00
Computers and Technology, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Arts, 11.03.2021 14:00
English, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
English, 11.03.2021 14:00