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A 0.548-kg ball is attached to one end of an aluminum wire that has a diameter of 1.44 mm and an unstretched length of 0.651 m. The other end of the wire is fixed to the top of a post. The ball rotates about the post in a horizontal plane at a rotational speed such that the angle between the wire and the horizontal is 5.10°. Calculate the tension in the wire. Calculate the increase in its length due to the tension in the wire.
In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (?78.5°C) and in boiling pentane (36.1°C). What pressure would be found at the boiling point of water
A cook puts 9.20 g of water in a 2.00-L pressure cooker that is then warmed to 470°C. What is the pressure inside the container
A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 cm and released. If the ball makes 55 oscillations in 20 s, what are its mass and maximum speed
Two infinite long wires are parallel to one another and are 5.0 cm apart. Both have current passing through them in the same direction. What is the resulting force on the 1.0 A wire
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
Three capacitors numbered 1, 2 & 3, each have the same value of capacitance, What is the effective total capacitance
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. Calculate the apparent thickness of the plate as viewed from above the water
A spring that has a force constant of 1000 N/m is mounted vertically on the ground. By what distance does the spring compress
Three charges (Q1, Q2, and Q3) of equal size and same sign are places on the corners of an equilateral triangle. What is the net electric field at the geometric center of the triangle
A particle of 8 kg with a veloctiy of 40 m/s hits a 40 kg particle that is at rest. The collision is elastic. What are the final velocities of the particles
An operating gearbox (transmission) has 200. hp at its input shaft while 190. hp are delivered to the output shaft. Determine the rate of entropy production by the gearbox
A 3.18-nF parallel-plate capacitor is charged to an initial potential difference ?Vi = 100 V and is then isolated. How much work is required to withdraw the porcelain sheet
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