MOST nonmetals are
soilds
liquids
gases...
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:50
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:10
Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:30
The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:30
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/es.png)
Spanish, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/biologiya.png)
Biology, 11.09.2020 21:01
![question](/tpl/images/cats/fr.png)
French, 11.09.2020 21:01
![question](/tpl/images/cats/en.png)
English, 11.09.2020 21:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 11.09.2020 21:01
![question](/tpl/images/cats/geografiya.png)
Geography, 11.09.2020 21:01
![question](/tpl/images/cats/health.png)
Health, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/biologiya.png)
Biology, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/en.png)
English, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 11.09.2020 21:01