1) A mass of 60kg of water is heated by 80oC. How much energy is
required to do this? Water has a specific heat capacity of 4200 J/kg°C.
2) Aluminium has a specific heat capacity of 900 J/kg°C and water has a specific
heat capacity of 4200 J/kg°C. Based on these figures, which of the following
statements is true?
a) Water will turn to steam more easily than aluminium metal will melt.
b) 1kg of aluminium will take much longer to change its temperature than water
c) Aluminium is much more suitable for use in car radiators than water
d) 1kg of water needs to receive much more energy than 1kg of aluminium to change its temperature by 1°C
Answers: 2
Physics, 22.06.2019 01:00
Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v
Answers: 3
Physics, 22.06.2019 16:30
Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same
Answers: 1
Physics, 23.06.2019 00:20
Abeam of electrons moves at right angles to a magnetic field of 4.5 × 10-2 tesla. if the electrons have a velocity of 6.5 × 106 meters/second, what is the force acting on the electrons? the value of q = -1.6 × 10-19 coulombs.
Answers: 2
1) A mass of 60kg of water is heated by 80oC. How much energy is
required to do this? Water has a s...
Mathematics, 11.10.2020 01:01
Mathematics, 11.10.2020 01:01
English, 11.10.2020 01:01
Mathematics, 11.10.2020 01:01
Health, 11.10.2020 01:01
Biology, 11.10.2020 01:01
Mathematics, 11.10.2020 01:01
Social Studies, 11.10.2020 01:01
Computers and Technology, 11.10.2020 01:01