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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 1.30×10-15 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)
a ball of mass 0.203 kg has a velocity of 1.43 ms right a ball of mass 0.291 kg has a velocity of 0.396 ms left. they
Gayle runs at a speed of 4m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5m, her brother.
A car traveling 87km/h strikes a tree. The front end of the car compresses, What was the average acceleration of the driver during the collision
At the start of his race, an 84-kg runner pushes against the starting block, Determine the horizontal speed of the runner after the force is exerted for 0.32s
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them, What is the speed of the second train
A 16 cm-diameter compressed-air tank is 30 cm tall. The pressure at 20 degrees C is 140 atm. What volume would this air occupy at STP
A 1.5 m long stick with a mass of 0.3 kg is pivoted on a hinge at one end and held horizontally by a spring with spring constant 10 N/m attached at the other end
A 950-kg satellite orbits the Earth at a constant altitude of 105-km. What is the change in the system's kinetic energy
A piece of thin spherical shell that has a radius of curvature of 110 cm is silvered on both sides. The concave side of the piece forms a real image 82.5 cm from the mirror. How far was the mirror moved
A car is driven east for a distance of 49 km, then north for 31 km, and then in a direction 25° east of north for 30 km. find the total displacement of the car from its starting point
A uniform magnetic field is aligned with the axis of a solenoid having a radius of 0.25m. What is the induced emf in the coil
A 40.0-N crate starting at rest slides down a rough 6.00-m-long ramp, inclined at 30.0° with the horizontal. What is the speed of the crate at the bottom of the incline
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