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A moving particle encounters an external electric field that decreases its kinetic energy from 10270 eV to 7400 eVas the particle moves from position A to positionB. The electric potential at A is -52.0 V, and the electric potential at Bis +27.7 V. Determine the charge ofthe particle. Include the algebraic sign (+ or −) with your answer.
White light illuminates an oil film on water. Viewing it directly from above, What is the refractive index of the oil
A rock of mass 42 kg accidentally breaks loose from the edge of a cliff and falls straight down. What is the magnitude of the acceleration of the rock
A wheel rotates about a fixed axis with an initial angular velocity of 25 rad/s. During a 4.0-s interval the angular velocity decreases to 10 rad/s. How many radians does the wheel turn
Commercial electric power in most of Europe is rated 240Vrms and 50Hz. (in the US the system is 120Vrms and 60 Hz.), Determine the rms-current drawn by thus bulb
A heat engine does 250 J of work per cycle while exhausting 700 J of heat to the cold reservoir. What is the engine's thermal efficiency
The displacement vectors 44.5 cm at 15.0° and 23.0 cm at 51.0° both start from the origin and form two sides of a parallelogram. Find the area of the parallelogram
A long, non conducting, solid cylinder of radius 3.7 cm has anonuniform volume charge density ρ = Ar2, a function of the radial distance r from the cylinder axis. A = 2.4 µC/m5.
An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. What is the pressure in the narrow section of the pipe
A vessel whose walls are thermally insulated contains 2.3 kg of water and 0.35 of ice, all at the temperature of 0.0 . The outlet of a tube leading from a boiler in that water is boiling at atmospheric pressure is inserted into the water. How many..
A doubly charged ion is accelerated to an energy of 31.5 keV by the electric field, What is the electric field strength between the plates in V/m
The sound level measured in the room by a person watching a movie in a home theatre system varies from 63 dB throughout a quiet part to 92 dB throughout a loud part. In the order of how many times louder is the latter sound.
A 6.10 g lead bullet traveling at 310 m/s is stopped by a large tree. what is the increase in temperature of the bullet
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