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A circular coil 15 centimeter in diameter and containing nine loops lies flat on the ground. The Earth's magnetic field at this location has magnitude 5.00 x 10-5 T and points into the Earth at an angle of 52o below a line pointing due north. A 7.80 Amp clockwise current passes through the coil, evaluate the torque on the coil.
A 65 {\rm kg} hiker climbs to the top ofa 450 {\rm m}-high hill. Ignoring the energy required for horizontal motion and assuming atypical efficiency for energy utilize by the body, how many frozen burritos would be needed to fuel this climb? Suppose ..
An 8.57-kg block slides with an initial speed of 1.64 m/s up a ramp inclined at an angle of 27.3° with the horizontal. Use energy conservation to find the distance the block slides before coming to rest
A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 1.2 rev/s to a maximum of 3.1 rev/s. what is his moment of inertia at his maximum rotation rate
A spherically shaped balloon has a radius of 8.56m, and is filled by helium. How large a mass of cargo can it lift, assuming that the skin and structure of the balloon have a mass of 988kg?
Waves travel 5000 m/s along a wire that is 2m long. What is the wave length of the first harmonic? What is the frequency of the first harmonic
The shuttle Galileo has experienced engine trouble on her approach to Star Fleet Command and has landed in San Francisco bay. Estimate what is her average density
What is the greatest weight W that can be supported this way without pulling out the nail? What is the magnitude of the force that the hinge exerts on the pole.
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for measurements on whole human bodies has a field strength of 7.33 T, and the current in the solenoid is 2.20 x 102 A. What is the number of turns per ..
a nearsighted person cannot see objects clearly beyond 25 cm her far point. if she has no astigmatism and contact
Give four examples (two of each type) of optical devices which are best understood using either Geometric Optics or Physical Optics. Justify your examples.
A 39.2-kg boy, riding a 2.67-kg skateboard at a velocity of +5.37 m/s across alevel sidewalk, jumps forward to leap over a wall. Just afterleaving contact with the board, the boy's velocity relative to the sidewalk is 5.52 m/s, 9.72° above the horizo..
An airplane travels 3100km at a speed of 790km/h, and then encounters a tailwind that boosts its speed to 990km/h for the next 2800 km. what was the average speed of the plane for this trip
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