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Gas is confined in a tank at a pressure of 9 atm and a temperature of 15 degrees C. If 31% of the gas is withdrawn and the temperature is raised to 58 degrees C, what is the new pressure in the tank? Answer in atm.
two polarizers are oriented at 72 degress to one another. Unpolarized light falls on them. What fraction of the light intensity is transmitted
The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 601 mW/m^2
Draw a sketch that shows the distribution of dipoles in a ferromagnetic solid in zero applied magnetic field. Illustrate what is the name given to internal interaction acting on the dipoles
Given the angular speed omega, find out the radius R(omega) at which the mass rotates without moving toward or away from the origin. Determine the radius in terms of k, L, M, and omega.
A uniform wooden plank of mass 15kg and total length 10m rests on two supports. Find the forces of the two supports on the plank
Consider a horizontal spring of spring constant 30 N/m. A 2 kg mass is attatched to the spring and pulled .05 m from the equilibrium position along a frictionless table. what is the maximum speed of the vibrating mass
A friend of yours is loudly singing a single note at 400 Hz as driving toward you at 250 m/s on a day when the speed of sound is 340 m/s
A 700 N car traveling at 25m/s.The breaks are applied suddenly and the car slides to a stop. The average breaking force between the tires and the road is 7100 N.How far will the car slide once the breaks are applied.
An alpha particle of mass m = 6.68×10-27 kg, positive charge q = 2e, and initial kinetic energy K = 9.00 MeV is projected, how close to the center of the nucleus is the particle when it comes momentarily to rest
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 51 Hz and an amplitude of 4 cm.
The Earth has a static electric field almost everywhere on the surface of about 100 V/m, pointed downward, called the "Fair weather field". Calculate the total charge induced on the Earth's surface
If the maximum acceleration that is tolerable for passengers in a subway train is 2.45 m/s2 and subway stations are located 840 m apart, What is the travel time between stations
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