Which of these experiments would make use of qualitative data?
a. a study of different surfac...
Physics, 24.09.2019 01:00 stephaniesmile8
Which of these experiments would make use of qualitative data?
a. a study of different surfaces to compare luster or shine
b. a study of different shapes to compare rolling frictions
c. a study on the change in freezing point of water when salt is added
d. a study on the effects of sunlight on the growth rate of plants
Answers: 1
Another question on Physics
Physics, 22.06.2019 05:30
Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.
Answers: 1
Physics, 22.06.2019 09:30
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
Physics, 22.06.2019 18:00
Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?
Answers: 2
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
You know the right answer?
Questions
History, 12.02.2022 14:20
Mathematics, 12.02.2022 14:20
Mathematics, 12.02.2022 14:20
SAT, 12.02.2022 14:20
History, 12.02.2022 14:20
Mathematics, 12.02.2022 14:20
Mathematics, 12.02.2022 14:20
Mathematics, 12.02.2022 14:30
Mathematics, 12.02.2022 14:30
