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A charge of 2.50 is held fixed at the origin. A second charge of 2.50 is released from rest at the position (1.25 , 0.570 ).
A) If the mass of the second charge is 2.75 , what is its speed when it moves infinitely far from the origin?
B) At what distance from the origin does the second charge attain half the speed it will have at infinity?
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration after it has completed one-fourth of the circle.
what is the thermal kinetic energy in 1kg of oxygen gas at 20 degrees celsius? What fraction of this energy is translational
a speeder passes a parked police car at a constant speed of 34.9 ms. at that instant the police car starts from rest
110 grams of boiling water (temperature 100° C, heat capacity 4.20 J/gram/K) are poured into an aluminum pan whose mass is 1000 grams and initial temperature 24° C (the heat capacity of aluminum is 0.9 J/gram/K).
A college student who was late for his physics class drove through a red traffic light, How fast did he need to drive for a Doppler shift this large
The wavelength of red light emitted by a 3.01-mW helium-neon laser is 626 nm. what is the density of photons in the beam
An inquisitive physics student and mountain climber climbs a 55 m cliff that overhangs a calm pool of water. She throws two stones vertically downward 0.8 s apart and observes that they cause a single splash.
A migrating bird is initially flying south at 10 m/s. To avoid hitting a high-rise building, What is the bird's average acceleration during this 2 s interval
The mass of Pluto is 0.0025 times that of earth, and its radius is 0.180 times that of earth. Calculate the acceleration of gravity at the surface of Pluto
A person jumps up and down on a trampoline, while staying in contact with it. The motion is simple harmonic motion and it takes 1.90s to complete one cycle.
An object weighing 300 N in air is immersed in water after being tied to a string connected to a balance. find the density if the object and the oil
A jet airplane is in level flight. The mass of the airplane is m=8850 kg. at what angle is the airplane banked
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