Physics, 07.12.2019 04:31 acamjackie25561
Astudent is using a resonance tube and determines that three resonances occur at distances of l1 = 0.513 m, l2 = 0.855 m, and l3 = 1.212 m below the open end of the tube. the frequency of the tuning fork used is 4.80 102 hz. (enter your answers to at least three significant figures.) hint (a) find the wavelength (in m) using distances l2 and l1. λ2-1 = 984.96 incorrect: your answer is incorrect. m (b) find the wavelength (in m) using distances l3 and l2. λ3-2 = m (c) find the average wavelength (in m). λavg = m (d) find the average speed of sound (in m/s).
Answers: 2
Physics, 21.06.2019 19:30
Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?
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Physics, 21.06.2019 23:00
Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.
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Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
Physics, 22.06.2019 18:30
Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?
Answers: 1
Astudent is using a resonance tube and determines that three resonances occur at distances of l1 = 0...
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