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A cubic metal box with sides of 18 cm contains air at a pressure of 1 atm and a temperature of 311 K. The box is sealed so that the volume is constant, and it is heated to a temperature of 411 K. Find the force due to the internal air pressure on each wall of the box.
A 9 V battery is rated at 80 Ah. It can deliver a current of 80 A for one hour, or a current of 40 A for 2 hours, etc. What is the total energy stored in the battery
What must be the value of the putty mass m so that the amplitude after the collision is one-half the original amplitude.
A 9.22 kg ball, hanging from the ceiling by the light wire 145.00 cm long, is struck in an elastic collision by a 1.20 kg ball moving horizontally at 6.46 m/s just before the collision.
An 840 kg car needs to round a level curve with a radius of 23m.The driver wants to proceed at 56 kph. How much work does the friction force do on the car
Two slits of equal width are a distance 0.57 mm apart and are illuminated by coherent, mono-chromatic light. compute the widths of the slits
a sound wave of frequency 1225 hz travels through the air directly toward a wall, what is the initial wavelength of the sound
A 1.0 mW HeNe laser with wavelenght 633 nm is shown on a metal. The photocurrent is reduced to zero with stopping potential of 0.50 volts, What is the work function of the metal and what is the cutoff wavelength
In a hydraulic system a boy of mass m is standing on one of the movable positions that is a disc of radius R, what is the pressure in the hydraulic fluid
A woman on a bridge 86.8 m above a stream sees a bottle floating along at a constant speed. Calculate the speed of the bottle
A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
An 1590 kg car stopped at a traffic light is struck from the rear by a 873 kg car and the two become entangled. what is the speed of the entangled mass after the collision
1. A modern-day zeppelin holds 8,280 m3 of helium, Compute its maximum payload at sea level
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