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, 21.06.2019 18:20, sahaitong814
What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green
Answers: 2
Physics, 22.06.2019 13:10, rosemary909
Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.
Answers: 1
Physics, 22.06.2019 14:00, smkw04p3ao0n
If element x has 99 protons how many electrons does it have
Answers: 1
Scientists measure the of isotopes in rocks to determine an approximate age. radioactive decay size...
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