Physics, 25.03.2020 05:30, emilyphillips1681
A transverse periodic wave is established on a string. The wave is described by the expression y = 0.005 sin(20.0x + 2ft) where y is in meters when x and t are in meters and seconds, respectively. If the wave travels with a speed of 20.0 m/s, what is its frequency, f?
Answers: 3
Physics, 22.06.2019 00:30, powberier6979
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 05:40, laurelbrasi
The difference between a red shift and a blue shift has to do with wavelength frequency. t or f
Answers: 1
A transverse periodic wave is established on a string. The wave is described by the expression y = 0...
Physics, 18.10.2020 16:01
Spanish, 18.10.2020 16:01
Mathematics, 18.10.2020 16:01
Mathematics, 18.10.2020 16:01
Physics, 18.10.2020 16:01