Answers: 2
Physics, 21.06.2019 17:20, londonval
Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg
Answers: 3
Physics, 23.06.2019 12:00, sanakhalid9728
What belongs in the areas marked x and y? x: the internal energy of a piston system increases as heat is added and rises to a cool area y: as thermal energy is added to a container, some of the energy is lost to the environment x: as thermal energy is added to a container, some of the energy is lost to the environment y: the internal energy of a piston system increases as heat is added and rises to a cool area x: a cold spoon placed in hot liquid gets warmer y: thermal energy is converted to light energy x: thermal energy is converted to light energy y: a cold spoon placed in hot liquid gets warmer
Answers: 3
A scientist adds iodine as an indicator to an unknown substance. What will this indicator reveal abo...
History, 12.02.2021 07:10
Mathematics, 12.02.2021 07:10
Health, 12.02.2021 07:10
Mathematics, 12.02.2021 07:10
Mathematics, 12.02.2021 07:10
Mathematics, 12.02.2021 07:10
English, 12.02.2021 07:10