Answers: 3
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
Physics, 23.06.2019 07:00
The doctor lands his tardis on a planet whose radius is 1.2x10^7m the acceleration due to gravity is 18m/s^2. what is the mass of the planet
Answers: 1
Physics, 23.06.2019 11:30
He acceleration due to gravity on the surface of mars is about one third the acceleration due to gravity on earth’s surface. the weight of a space probe on the surface of mars is about
Answers: 1
Physics, 23.06.2019 12:00
Patients with brain tumors may elect to have a procedure known as gamma knife. in a typical gamma knife procedure gamma rays are directed toward a tumor with contact to surrounding tissues. limiting contact between gamma rays and healthy tissue is important because
Answers: 1
An impulse of 40 Ns is transmitted to the rim of a spinning wheel. If the wheel is a flat uniform di...
History, 16.04.2020 19:53
Mathematics, 16.04.2020 19:53
Mathematics, 16.04.2020 19:53
Mathematics, 16.04.2020 19:53
Mathematics, 16.04.2020 19:53
History, 16.04.2020 19:53
Biology, 16.04.2020 19:53
Computers and Technology, 16.04.2020 19:54
Computers and Technology, 16.04.2020 19:54
Mathematics, 16.04.2020 19:54