To measure the acceleration due to gravity on a distant planet, an astronaut hangs a 0.070-kg ball from the end of a wire. The wire has a length of 1.5 m and a linear density of 3.10 10-4 kg/m. Using electronic equipment, the astronaut measures the time for a transverse pulse to travel the length of the wire and obtains a value of 0.078 s. The mass of the wire is negligible compared to the mass of the ball. Determine the acceleration due to gravity.
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The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
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Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
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To find the mass defect for uranium-238 several calculations must be made. which is the calculation that should be made first? assume atomic number for uranium-238 is 92. a. 92(1.0073) x 92(1.0087) = b. 92(1.0073) x 146(1.0087) = c. 146(1.0073) x 238(1.0087) = d. 238(1.0073) x 238(1.0087) =
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Physics, 23.06.2019 21:30
Unpolarized light passes through three polarizing filters. the first one is oriented with a horizontal transmission axis, the second filter has its transmission axis 25.7° from the horizontal, and the third one has a vertical transmission axis. what percent of the light gets through this combination of filters
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To measure the acceleration due to gravity on a distant planet, an astronaut hangs a 0.070-kg ball f...
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