The tape in a videotape cassette has a total length 219 m and can play for 2.4 h. as the tape starts to play, the full reel has an outer radius of 45 mm and an inner radius of 13 mm. at some point during the play, both reels will have the same angular speed. what is this common angular speed? answer in units of rad/s.
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Physics, 21.06.2019 20:30
Protons and neutrons are found within the nucleus of an atom
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Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.
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Physics, 22.06.2019 09:30
On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
Answers: 2
The tape in a videotape cassette has a total length 219 m and can play for 2.4 h. as the tape starts...
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