Answers: 3
Physics, 22.06.2019 10:30
Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.
Answers: 3
Physics, 22.06.2019 21:00
What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
Answers: 1
Physics, 22.06.2019 21:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.
Answers: 1
Physics, 23.06.2019 00:30
Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.
Answers: 2
Can a magnet attract a pure substance?...
Mathematics, 22.03.2021 19:50
Biology, 22.03.2021 19:50
English, 22.03.2021 19:50
Mathematics, 22.03.2021 19:50
Mathematics, 22.03.2021 19:50
Mathematics, 22.03.2021 19:50
Mathematics, 22.03.2021 19:50
English, 22.03.2021 19:50
Mathematics, 22.03.2021 19:50
English, 22.03.2021 19:50
Mathematics, 22.03.2021 19:50