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A body of 2kg is suspended from the ceiling of an elecator moving up with an accelration "g". Find the apparant weight of body in the elevator? Need detailed.
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 77.0 rev/min in 3.40 s.
a car passes a stationary cop at 35 m/s. at that instant, he presses his brakes, slowing at a rate of 1.5 m/s2. The cop takes 2 sec. to put down his gear to pursue, How far did the cop travel to catch up
What is the Reynolds number for the fastest falling ball in the experiment. Use the same data as in problem 1, glycerin density of 1.30 g/cm^3
A highway curve with radius 900 is to be banked so that a car traveling 56.0 will not skid sideways even in the absence of friction. At what angle should the curve be banked
An alpha particle (the nucleus of a helium atom, with charge +2e and a mass four times that of a proton), What is the speed of the antiproton when the particles are 1.1nm apart
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.703 A) sin [(257 rad/s)t]. Determine the resistance of the bulb's filament
Describe the 4 S reactor. Compare it to a traditional reactor, What are the advantages of nuclear power
A park merry-go-round consists of a 210 kg circular wooden platform 3.90 m in diameter. Four children running alongside push tangentially along the platform's circumference until, starting from rest, the merry-go-round reaches a steady speed of on..
What if initially a charge 2.0 C is put on shell #1 with radius 3.2 m, then a far away shell #2 (initially neutral) with radius 8.1 m is connected to shell #1 by a long conducting wire. What is the electric potential V on shell #1
A copper rod of cross-sectional area 14.5 cm2 has one end immersed in boiling water and the other in an ice-water mixture, How many grams of ice melt each second
An electron with a speed of 1.1 × 107 m/s moves horizontally into a region where a constant vertical force of 5.6 × 10-16 N acts on it. determine the vertical distance the electron is deflected
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
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