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When the bulb of a constant-volume gas thermometer is placed in a beaker of boiling water at 100 oC, the pressure of the gas is 229 mmHg . When the bulb is moved to an ice-salt mixture, the pressure of the gas drops to 161 mmHg .
Assuming ideal behavior, what is the Celsius temperature of the ice-salt mixture?
an airplane must reach a speed of 184 mih to take off. if the runway is 498 m long what is the minimum value of the
A76 kg window cleaner uses a18 kg ladder that is 6.0 m long. He places one end on the ground2.9 m from a wall, rests the upper endagainst a cracked window, What is the angle of this force on the ladder
If a rocket's exhaust speed is 160 m/s relative to the rocket, what fraction of its initial mass must be ejected to increase the rocket's speed by 50 m/s
You want to use the idea of electromagnetic induction to make the bulb in your small flashlight glow; it glows when the potential difference across it is 1.5 Volt. Find with what speed should you move the magnet to make the bulb light
A uniform ion beam of radius R consists if N' ions per meter ofmass m, speed v, and charge q. Find the Lorentz force (due toboth E and B) on an ion at the edge of the beam. At whats peed would the force become zero?
A pendulum is constructed from a thin, rigid, and uniform rod with a small sphere attached to the end opposite the pivot. This arrangement is a good approximation to a simple pendulum (period =3.72 s), because the mass of the sphere (lead) is much gr..
A convex spherical mirror, whose focal length has a magnitude of18.8cm, is to form an image11.2cm behind the mirror. Where should the object be placed? What is the magnification of the mirror?
A cardboard box slides along a wood floor with an ini - tial velocity of 5.00 m/s. what is the coefficient of kinetic friction between floor and box
Through an ecology experiment, an aquarium half full with water is placed on a scale. The scale reads 195 N. A rock weighing 8 N is added to the aquarium. If the rock sinks to the bottom of the aquarium, what will the scale read?
a moving 4.30 kg block collides with a horizontal spring whose spring constant is 346 nm.a the block compresses the
A ball is kicked from the ground toward a fence that is located 25 m away. By how much does the ball clear the fence
The electron gun of a television tube accelerates an electronfrom rest through a potential difference of 350V. evaluate the change in the potential energy of the electron
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