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A 90 Kg halfback running north with a speed of 10m/s is tackled bya 120 Kg opponent running south at 4m/s. The collision is perfectlyinelastic. Compute the velocity of the 2 players just after the tackle.
question a ball is thrown upward from a platform 4.0 m high with a speed of 23 ms at an angle of 37 o from the
The spheres are then separated so that there is a distance of 200mm between their centers. What is the force between them?
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle. What is his predicted landing velocity
When a potential difference of 172 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 23.0 nC/cm2
a what are the period and speed of a person on a carousel if the person has an acceleration with a magnitude of 0.74
does the non-Coulomb electric field curl clockwise.
A 66 KG trampoline artist jumps vertcally upward from the top of a platform with a speed of 5.4 m/.s. A) What is his speed as he lands on the trampoline, 3 m below his jump off point? B) If the trampoline behaves like a spring with spring stiffnes..
a hot iron horseshoe(mass=0.50kg), which has just been forged,is dropped into 2.7 L of water in a o.45 kg iron pot initially at 22 degree celcius.If the final equilibrium temparature is 27 degree celcius, estimate the initial temparature of the hot..
Mary runs off a diving board with a velocity of 1.7 m/s in the horizontal direction. If the water surface is 2 meters below the board: how long will it take for her to hit the water
A TV remote control emits IR light. If the detector on the TV set is not to react to visible light, What is the shortest-wavelength light that can strike silicon without causing electrons to jump from the valence band to the conduction band
A 145 g wire is held under a tension of 258 N with one end at x = 0 and the other at x = 13.0 m. At time t = 0, pulse 1 is sent along the wire from the end at x = 13.0 m. At time t = 30.9 ms, pulse 2 is sent along the wire from the end at x = 0. A..
Four vectors A,B,C ,D and are shown (not to scale). Vector A has magnitude 23.0 and acts at an angle of 14.7 degrees with respect to the positive x axis. find the magnitude and direction of the resultant vector R
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