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Two very large charged parallel metal plates are 9.00cm apart and produce a uniform electric field of 3.00×106 N/C between them. A proton is fired perpendicular to these plates, 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 large cruise ship of mass 6.70 107 kg has a speed of 13.0 m/s at some instant. How much work is required to stop it
Suppose a star with radius 8.62 108 m has a peak wavelength of 681 nm in the spectrum of its emitted radiation. What is the surface temperature of the star
consider two ZAMS stars: 09 and B0. The effective temperature of the 09 star is 34,500 k. Assuming a hydrogen density of 10^8 m^-3, and Alpha = 3.1 x 10^-19 m^3 s^-1, estimate the Stromgren radius of the stars in pc and AU
The starship Enterprise speeds by you at a speed of 0.960c. It is measured in your frame to be 100 m long. how fast did you appear to be traveling according to Data
The drawing shows two situations in which charges are placed on the x and y axes. find the magnitude of the net electric field at the origin
A 4.98-kg pendulum bob, at a height of 0.720 m above the floor, is released and swings down to the ground, Find how high up the incline the block will slide
What is the ph of a buffer that results when .40 mol nahco2 is mixed with 100 ml of 2.0 m hcl and diluted with water to 250 ml
the engine for one indy car is known to produce a pitch of high a 880 hz. however at one instant as the car is driving
A Carnot engine operates between reservoirs at 550K and 300K, discarding 1500 J of heat in each cycle. determine the engine's efficiency
A single slit forms a diffraction pattern, with the first minimum at an angle of 40.00 (degree) from central maximum, What is the wave length of this new light
A jet plane flying at a constant speed v at an altitude h = 10 km is being tracked by radar located at O directly below the line of flight. determine the value of r at this instant and the magnitude of the velocity v of the plane
A cannon shoots a rock from the ground at an angle of 31.0° above the horizontal. What is the rock's speed in the horizontal direction just before it hits the ground
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