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A person with a mass of 50 kig is holding on to a rope of 15 kg which is attached to the ceiling. Note that the person is in midair Draw a free body diagram of the person and the rope. Clearly draw and arrow between each "third law pair." Using these third law pairs, what is the net force on the ceiling?
A bar of length 2 cm slides along metal rails at a speed of 1 cm/s. The bar and rails are in a magnectic field of 2 T, pointing out of the page. what is the induced emf in the bar and rails
q 1. the highest musical note on a piano has a frequency of 4286 hz. why would a tape of piano music sound terrible if
A 0.25-kilogram mass on a vertical spring oscillates at a frequency of 1.0 Hz. If a 0.45-kilogram mass were instead suspended from the same spring, what would be the frequency of oscillation
That is the sound from the organ bounces back and forth off the church walls many times before the sound inentsity decays away completely. If the reverberation time is 10s and the church has the approximate shape
A 100 W lightbulb is plugged into a standard 120 V outlet. How much does it cost per month (30 days) to leave the light turned on continuosly? Assume electrical energy costs 7.5/kWh. (Enter dollars with no unit) What is the resistance of the bulb? Wh..
What is the speed of an electron that has a total energy of zero in a hydrogen atom
Positively charged aluminum ion, Al3+, has a mass of 4:50 1026 kg. After being accelerated through a potential dierence of 650 V, Calculate the radius of the path of the ion in the eld
A satellite is in a circular orbit around an unknownplanet. The satellite has a speed of 1.60 x 104m/s, and the radius of the orbit is 5.45 x 106 m. What is the orbital speed of the second satellite
A parallel-plate air-filled capacitor having area 41.0 cm2 and plate spacing 2.70 mm is charged to a potential difference of 360. V. calculate the energy density between the plates
An adventurous crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stop to rest at the middle of the rope. The rope will break if the tension in it exceeds 2.50x10^4 N, and our hero's mass is 9..
The drawing shows an intravenous feeding. With the distance shown, nutrient solution (? = 1050 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood
A midle C note (262 Hz) is sounded on a piano to help tune a violin string. When the string is sounded, nine beats are heard in 3.0s. How much is the violin string off tune?
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