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A point charge of +2.5 C is fixed at the origin of the x-axis. An alpha particle is placed at the 2-m position and released. What is the initial acceleration of the alpha particle? Remember that the alpha particle is the nucleus of a helium atom; therefore it contains two neutrons and two protons. The alpha particle has a mass of 6.64 × 10-27 kg.
If the shear stress in steel surpasses about 4.00*108 N/m2, the steel ruptures. Determine the shearing force necessary to shear a steel bolt 1.05 cm in diameter.
Biomedical measurements show that the arms and hands together typically make up 13.0 of a person's mass, while the legs and feet together account for 37.0. find the average angular velocity of his arms and legs
If the heavier skater reaches the edge in 30 second, find how long does the lighter skater take to reach the edge
what is the magnetic potential energy of a 2 cm diameter circular loop carrying a 1a current when placed in a 2 t
The ideal gas law relates the temperature, pressure and volume of an ideal gas. How many molecules of gas are inside the balloon
A rocket ship is in orbit around Jupiter. The radius of the orbit is 3 times the radius of Jupiter (the radius of Jupiter is 71,500 kilometer). What is the period of the rocket ship orbit
A 1,720-Hz pure tone is played on a stereo in an open field. A per- son stands at a point that is 4 m from one of the speakers and 4.4 m from the other. Does the person hear the tone
Two 69 g ice cubes are dropped into 202 g of water in a thermally insulated container. what is the final temperature at thermal equilibtrium
A certain lightbulb has a tungsten filament with a resistance of 17.7 ? when at 20.0°C and 135 ? when hot. Find the temperature of the hot filament
A sound wave with intensity 23 mW/m2 interferes constructively with a sound wave that has an intensity of 16 mW/m2. What is the intensity of the superposition of the two
A simple model considers a continent as a block (density ? 2800 kg/m3), estimate the height of the continent above the surrounding mantle rock
Two identically charged particles separated by a distance of 6.5 m repel each other with a force of 8.5 N. What is the magnitude of the charges
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