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In the quark model of fundamental particles, a proton is composed of three quarks: two "up" quarks, each having charge +2e/3, and one "down" quark, having charge -e/3. Suppose that the three quarks are equidistant from one another. Take the distance to be 1.50×10^-15 m and calculate the potential energy of the subsystem of two "up" quarks. (MeV) Calculate the total electric potential energy of the three-particle system. (MeV)
"The drawbridge then starts to rise and the dancer continues to stand on one leg. The drawbridge stops just at the point where the dancer is on the verge of slipping. What is the magnitude of the frictional force now? The answer should not dépend on ..
a certain second-order reaction has a rate constant of 1.10times10-3 at 27 and an initial half-life of 226. what is
A 2.0 ð‘˜ð‘" package is released on a frictionless ramp inclined 53.1 ° above the horizontal, What is the speed of the package just as it reaches the spring
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. At some point, the floor of the Graviton drops out, instilling the fear in riders that they will fall a great height.
In the Compton Effect, momentum conservation applies so total momentum of the photon and the electron is the same before and after the scattering occurs.
A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. What is the moment of inertia of the wheel
A +1 uC charge is held 10 cm directly above the origin. A -1 uC charge is held 5 cm directly to the right of the origin. What is the electric potential at the origin
All through an experiment, a block of wood with a mass of 250 g is placed on an inclined plane. While the plane is raised to an angle of 43o, the block slides down the plane at a constant speed.
A cubical Gaussian surface surrounds two charges,q1 = +6.8×10-12 C and q2 = -2.0×10-12 C, as thedrawing shows. What is the electric flux passing through the surface?
Two people start at the same place and walk around a circular lake in opposite directions. How long will it be before they meet
You are walking toward a plane mirror at a speed of 2.3 m/s. How fast is your image moving relative to you
In each cycle of its operation, a refrigerator removes 8 J of heat from the inside of the refrigerator and releases 22 J of heat into the room. How much work per cycle is necessary to operate this refrigerator.
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