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A point charge Q is located a the point (0,0), a second pointcharge with charge 2Q is located at the point (1,0); a third pointcharge with charge 3Q is located at the point (0,2).
a) What is the electric potential at the point (1,1)?b) If a fourth point charge with charge 4Q is placed at thepoint (1,1) how much potential energy will it have?
An elementary particle of mass M completely absorbs a photon, after which its mass is 1.01M. (a) What was the energy of the incoming photon (b) Why is that energy greater than 0.01Mc^2
Steam locomotives have an eff of 17% and operate with hot steam temp of 425C. A.) what is the cold temp B.) what is the max eff if the cold temp 150C
One gallon of gasoline releases approximately 1.0 108 J when it is "burned" (i.e., undergoes combustion) in a car engine. what is the mechanical work done by the engine
question a projectile is launched from a platform 35 feet high with an initial velocity of 20 feet per second. the
To determine the location of his center of mass, a physics studentlies on a lightweight plank supported by two scales 2.5 mapart. find the distance from the student's head to his center of mass
At full power, how long would it take for car to accelerate from 0 to 56 mph? Neglect friction and air resistance.
An intense light source radiates uniformly in all directions. What is the total average power output of the source
A particle moves along the x axis. It is initially at the position 0.270 m, moving with velocity 0.070 m/s and acceleration -0.410 m/s2. Find its velocity at the end of this time interval
A hot (70 C) lump of metal has a mass of 250 gm and a specific heat of .25 cal/gm-C. John drops the metal into a 500 gm calorimeter (specific heat of .10 cal/gm-C) containing 75 g of water at 20 C. Once they reach equilibrium, what will be the fin..
A certain freely falling object requires 1.55 s to travel the last 36m before it hits the ground. From what height above the ground did it fall.
You are using a grating with 1000 lines per millimeter; the angle for the first order maxima is ? = 16°. Find the angle for the second order maxima
The aorta carries blood away from the heart at a speed of about 40 cm/s and has a radius of approximately 1.1 cm. determine the approximate number of capillaries in the human body
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