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Two charges are fired directly at each other. Both charges have different masses and different initial velocities so that the initial momentum of the system is not necessarily zero. Assume that the net momentum of the system is \(\overrightarrow{{p}}\) . Minimize the separation distance of the charges \(| \overrightarrow{{r_{2}}} -\overrightarrow{{r_{2}}} |\) in one dimension where the vectors are the position vectors of the particles with respect to an arbitrary inertial coordinate system.
Two capacitors, one that has a capacitance of 3.90 µF and one that has a capacitance of 12.3 µF, are connected in parallel. Find the potential difference across each capacitor after they are reconnected
A baseball pitcher delivers a fastball that crosses the plate with an angle of 5.77 degrees relative to the horizontal and a speed of 87.9 mph. What is the magnitude of the impulse received by the ball
find the highest distance throughout which his center of gravity can fall without his breaking a bone.
A proton beam in an accelerator carries a current of115µA. If the beam is incident on a target, how many protons strike the target in a period of 26.0s?
The temperature difference between the inside and the outside of a home on a cold winter day is 49°F. Express this difference on the Celsius scale.
A 6.00 g bullet is fired horizontally at two blocks resting on a smooth tabletop, as shown in the top figure, find the speed of the bullet immediately after it emerges from the first block, find the bullet's original speed
A constant 6.0 N net force acts for 4.0 s on a 12 kg object. what is the objects change in velocity
A runner covers one lap of a circular track 40.0m in diameter in 63.3s. what were her average velocity(in m/s) for that half-lap
A car travels a distance of 50km/hr. it then travels an additional distance of 60km in 1 hour. what is the average speed of the car for the entire trip
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotation beam sweeps across the earth, & the earth receives a pulse of radio waves. ..
A goldfish is swimming inside a spherical bowl of water having an index of refraction n = 1.333. find the apparent distance of the goldfish from the wall according to an observer outside the bowl
After falling from rest from a height of 28 m, a 0.54-kg ball rebounds upward, reaching a height of 18 m. what average force was exerted on the ball
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