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Two soccer players start from rest,48m a part. they run directly toward each other, both players accelerating. the first player acceleration has a magnitudeof 0.50m/second square.the second player acceleration has a magnitude of 0.30m/second square. (a)how much time passes before the players collide? (b) at the instant they collide, how far has the first player run?
A single slit that is 2600 nm wide forms a diffraction pattern when illuminated with monochromatic light of 420-nm wavelength. At an angle of 10° from the central maximum, what is the ratio of the intensity to the intensity of the central maximum?
A double slit has two slits of width 0.650 mm separated by a distance between centres of 2.340 cm. How many interference fringes could be seen under the diffraction central maximum
While partying in Paris, you throw a glass of champagne off of the Eiffel Tower. how high above the ground are you
Two particles with charges +8e and -4e are initially very far apart (inifinite distance). which is the change in the electric potential energy
A submarine descending with a constant speed v emits sound signals of duration T0. What is the speed of the submarine
Chemical engineers often have to design their synthesis process using a vessel at high pressure. Compute the final temperature of the air after this compression
a 7.4 cm-diameter-baseball has a mass 145 g and is spinning at 2000 rpm. Treating the baseball as a uniform solid sphere, whats its angular momentum
A gas is contained in a closed cylinder with a mobile piston at oneof its ends. For the following conditions indicate: (1) if dW= -pdV or not, and (2) if the process is reversible, quasistatic,or irreversible. Explain in each case why is one or an..
A 13 N force with a fixed orientation does work on a particle as the particle moves through displacement d=(2i-5j+4k)m. What is the angle between the force and the displacement
a spaceship lifts off vertically from a planet where g 7.0 ms2. if the ship has an upward acceleration of 1.8 ms2 as
What is the speed of a beam of pions if their average lifetime is measured to be 4.50 x10-8 s
a parallel-plate air capacitor has a capacitance of 300 pf and a charge of magnitude 0.250uc on each plate. the plates
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