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A wire made of aluminum is 882 m long and has a cross-sectional area of 36.6 10-7 m2. It is observed that 6.6 C pass through the wire in 79.2 s. The resistivity of aluminum is 2.82 10-8 O · m. Determine the power loss of the wire.
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100.0 W tungsten filament bulb generates 95.0 W of heat, which dissipated through glass bulb which has radius of 3.00 cm and 0.500 mm thick. If thermal conductivity of glass is 0.836 W/m°C, determine difference in temp. between inner and outer sur..
Biological muscle cells can be thought of as nanomotors that use the chemical energy of ATP to produce mechanical work. How much work is done by such proteins
A dodgeball with mass 594.9 g is thrown directly at him with a speed of 22.43 m/s. He catches the dodgeball and then moves with a speed of 0.2635 m/s. What is the mass of the boy
Two adjacent resonant frequencies of an organ pipe are found to be 500 Hz and 600 Hz. What is the length of the pipe
An astronaut applies a force of 500 N to an asteroid, and it accelerates at 7.00 m/s2. What is the asteroid's mass
determine the weight of the collar.
What would be apparent speed of the spacecraft image
A pump is required to lift a mass of 780kg of water per minute from a well of depth 13.7m and eject it with a speed of 17.9m/s, What must be the power output of the pump
If it takes a fish 0.20s to perform evasive action, at illustrate what minimum height must it spot the pelican to escape? Assume the fish is at the surface of the water.
A charge -Q is uniformly distributed along a circular arc of radius R beginning on the +y axis and ending on the -x axis. Find the electric potential at the origin
A block with a mass m1 = 1.5 kg is pushed by a mass m2 = 1 kg against a spring with a force constant of k = 750Nm^-1. What is the period of the motion initially
Speedboat A negotiates a curve whose radius is 118 m. Speedboat B negotiates a curve whose radius is 270 m. Each boat experiences the equivalent centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
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