Physics, 14.12.2020 08:10 angel13sigala
An airplane begins its journey into Canada from a destination located 285 mi south of the border. The plane flies among a straight line path at 189 mi/h in a direction of 20.5 degrees west of north. Determine the number of minutes before the plane crosses the border. Assume that the border is aligned directly east and west in the region where flight takes place.
Answers: 3
Physics, 21.06.2019 15:20
If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?
Answers: 2
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
An airplane begins its journey into Canada from a destination located 285 mi south of the border. Th...
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