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Three seconds after automobile B passes through the intersection shown, automobile A passes through the same intersection. Knowing that the speed of each automobile is constant, determine (a) the relative velocity of B with respect to A, (b) the change in position of B with respect to A during a 4-s interval, (c) the distance between the two automobiles 2 s after A has passed through the intersection.
A father racing his son has half the kinetic energy of the son, who has one-third the mass of the father, What is the original speed of the father
A skier slides horizontally along the snow for a distance of 27 m before coming to rest. how fast was the skier going
An archer pulls his bow string back 0.440 m by exerting a force that increases uniformly from zero to 224 N. What is the equivalent spring constant of the bow
In a double-slit experiment, slits separated by 1.260e-4 m are illuminated by a coherent 571 nm light source. What is the angular position of the first bright fringe
An electron in a neon tube is accelerated from rest through a 2000-V potential difference. What velocity does the electron attain
The pressure of a gas is kept constant while 3 m3 of the gas at an initial temperature of 50oC is expanded to 9 m3. What is the final temperature of the gas
An iron-core solenoid is 43cm long and 1.7cm in diameter, and has 720 turns of wire. What is the permeability %u03BC at this high field strength
A camera has a lens with a focal length of 24.9 cm. how far from the film should the lens be placed
A tennis ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. How long has the ball been in the air when it returns to its original position
a non-uniform electric field is given by the expression e ay i bz j cx k where a b and c are positive constants.
what parasitic forms can be seen in the blood of a patient with african sleeping sickness? filariasis?
In a graphing calculator, there are four AAA batteries, which together provide a potential difference of 1.5 V and a total of 6.0 W·h of energy. what was the average current through the calculator
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