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A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, the horizontal total force on the driver has magnitude 132 N. What is the total horizontal force on the driver if the speed on the same curve is 17.5 m/s instead?
At a dock, a crane lifts a 1200 kg container 30 m, swings it out over the deck of a frieghter, and lowers the container into the hold of the freighter, which is 10 m below the level of the dock. The acceleration of gravity is 9.8 m/s2. Neglect fri..
A proton moving at 5.0 × 104 m/s horizontally enters a region where a magnetic field of 0.12 T is present, What magnitude force acts on the proton
Juan and Pablo carry a load weighing 720 N on a pole between them. If the weight of the 120-N pole is considered, what force does each person support
A spacecraft orbits an unknown planet at a distance of 5.2 x 10^7 m from its center. The period of its orbit is 52 hours. What is the mass of the planet
Find the kinetic energy of a 81.0-kg spacecraft launched out of the solar system with speed 146 km/s by using the classical equation K =(1/2)mu^2
The Hall voltage across a conductor in a 42mT magnetic field is 1.9mu V. When used with the equal current in a different magnetic field, the voltage across the conductor is 2.7mu V.
1.7 kilograms of water are changed from ice at 0?C into liquid water at 0?C, determine the change in mass of the water
Presume that the strength of the electric ?eld about an isolated point charge has a certain value at a distance of 4 m.
A water pipe decreases in diameter from 16 cm to 8 cm. In the wider section the average velocity is 30.0cm/s. determine the volume rate in the narrow section
He+ is a helum atom with one electron missing. Treating this like a hydrogen arom, what is the first excited state of this atom
A small mailbag is released from a helicopter that is descending steadily at 1.00 m/s. After 3.00 s, What is the speed of the mailbag
q1. charge is scattered uniformly throughout a long cylindrical shell of inner radius r and out radius 2r. at what
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