Physics, 31.08.2019 20:30 jetblackcap
Awave's frequency is 2hz and its wavelength is 4 m. what is the wave's speed?
Answers: 2
Physics, 22.06.2019 04:40
Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.
Answers: 3
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d
Answers: 2
Physics, 22.06.2019 22:00
The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?
Answers: 1
Awave's frequency is 2hz and its wavelength is 4 m. what is the wave's speed?...
English, 27.09.2019 18:30
Mathematics, 27.09.2019 18:30
Biology, 27.09.2019 18:30
Biology, 27.09.2019 18:30
Mathematics, 27.09.2019 18:30
Biology, 27.09.2019 18:30
Chemistry, 27.09.2019 18:30
Mathematics, 27.09.2019 18:30
Geography, 27.09.2019 18:30
Computers and Technology, 27.09.2019 18:30
English, 27.09.2019 18:30
History, 27.09.2019 18:30