![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:00
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:50
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:30
As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:50
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
Answers: 1
You know the right answer?
Three point charges, two positive and one negative, each having a magnitude of 20mu * C placed at th...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2019 08:30
![question](/tpl/images/cats/istoriya.png)
History, 28.09.2019 08:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2019 08:30
![question](/tpl/images/cats/istoriya.png)
History, 28.09.2019 08:30
![question](/tpl/images/cats/nemec.png)
German, 28.09.2019 08:30
![question](/tpl/images/cats/biologiya.png)
Biology, 28.09.2019 08:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 28.09.2019 08:30
![question](/tpl/images/cats/istoriya.png)
History, 28.09.2019 08:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2019 08:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2019 08:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2019 08:30
![question](/tpl/images/cats/biologiya.png)
Biology, 28.09.2019 08:30
![question](/tpl/images/cats/health.png)
Health, 28.09.2019 08:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2019 08:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 28.09.2019 08:30