Physics, 03.07.2019 18:20, Claysn9094
Awhistle of frequency 589 hz moves in a circle of radius 54.6 cm at an angular speed of 16.1 rad/s. what are (a) the lowest and (b) the highest frequencies heard by a listener a long distance away, at rest with respect to the center of the circle? (take the speed of sound in air to be 343 m/s.)
Answers: 1
Physics, 21.06.2019 23:50, BrainzOli7408
Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?
Answers: 3
Physics, 22.06.2019 12:40, FombafTejanjr7503
Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)
Answers: 1
Physics, 22.06.2019 16:40, jcblake
Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
Awhistle of frequency 589 hz moves in a circle of radius 54.6 cm at an angular speed of 16.1 rad/s....
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