Answers: 2
Physics, 21.06.2019 20:20
Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.
Answers: 3
Physics, 22.06.2019 06:30
What are similarities and differences between refraction, reflection, diffraction and absorption?
Answers: 3
Physics, 22.06.2019 06:30
Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane
Answers: 1
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
Một vật đang chuyển động với tốc độ 18m/s theo phương hợp với trục x góc 220°. Tìn thành phần x và y...
Mathematics, 28.07.2019 07:50
Mathematics, 28.07.2019 07:50
Spanish, 28.07.2019 07:50
English, 28.07.2019 07:50
English, 28.07.2019 07:50
Mathematics, 28.07.2019 07:50
History, 28.07.2019 07:50
Computers and Technology, 28.07.2019 07:50