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Two very large charged parallel metal plates are 10.0 apart and produce a uniform electric field of 2.80×106 between them. A proton is fired perpendicular to these plates with an initial speed of 5.20 , starting at the middle of the negative plate and going toward the positive plate.
How much work has the electric field done on this proton by the time it reaches the positive plate?
A heat engine has a useful work output of 4.0 kJ and expels 8.0 kJ of exhaust energy in each cycle. what is the engine's thermal efficiency
A hydrogen atom is in the 5d state. What is the magnitude of its orbital angular momentum
An object's moment of inertia is 1.8kgm2 . Its angular velocity is increasing at the rate of 3.3rad/s2, What is the torque on the object
An object has a volume of 0.25 m^3 and weighs 3000 N. What will be its apparent weight when submerged in water
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor, How much charge can the cloud hold before the dielectric strength of the air is exceeded
An unknown mass of tin is heated to a temperature of 218 C. It is placed into 200 g of water which is in a 100 g copper cup initially at 10 C. What is the heat lost by the sample of tin
question1 two wires hold up a massive beam of length l16 m and mass 330 kg. a box of mass 220 kg hangs from a wire that
An ideal monatomic gas is contained in a vessel of constant volume 0.270 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, respectively. Find the change in temperature of the gas
A ball is shot from the top of a building with an initial velocity of 20 m/s at an angle ? = 44° above the horizontal. If a nearby building is the same height and 55 m away, how far below the top of the building will the ball strike the nearby build..
Man pushes a 27-kg block 9.1 m along a level floor at constant speed with a force directed 45° below the horizontal. how much work does the man do on the block
A projectile is fired vertically from Earth's surface with an initial speed of 8.9 km/s. Neglecting atmospheric friction, how far above the surface of Earth will it go
A solenoid is designed to prodcue a 2.78*10^-2 T magnetic field near its center. It has a radious of 1.4cm, What total length of wire is required to make this solenoid
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