A particle of mass 100gm was fired from the origin with an initial velocity of 2cm / s. Calculate the maximum distance that it travels to stop when exposed to an obstructive force, given by F = -2v^(3//2) ?
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- About 9 light years separate Earth from the closest star system. There is a rocket that we are sending. Let the speed of the exhaust be 1/64 the speed of light. Make the beginning fuel mass twice as large as the load. How how long will it take to arrive the star system if it takes 200 hours to burn off the whole rocket's fuel and the fuel tank is not evacuated from the rocket?During a routine flight in 1956, test pilot Tom Attridge put his jet fighter into a 20 dive for a test of the aircraft’s 20 mm machine cannons. While traveling faster than sound at 4000 m altitude, he shot a burst of rounds.Then, after allowing the cannons to cool, he shot another burst at 2000 m; his speed was then 344 m/s, the speed of the rounds relative to him was 730 m/s, and he was still in a dive. Almost immediately the canopy around him was shredded and his right air intake was damaged.With little flying capability left, the jet crashed into a wooded area, but Attridge managed to escape the resulting explosion. Explain what apparently happened just after the second burst of cannon rounds. (Attridge has been the only pilot who has managed to shoot himself down.)Compute for the mass of an the mystery box. Given: vi=0m/s Vf= 40m/s Time: 19.08 seconds
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- Suppose two identical particles, each with identical masses and kinetic energies collide head-on. What is the kinetic energy of the other particle as measured from a reference frame where one particle is stationary?For years, the tallest tower in the United States was the Phoenix Shot Tower in Baltimore, Maryland. The shot tower was used from 1828 to1892 to make lead shot for pistols and rifles and molded shot for cannons and other instruments of warfare. Molten lead was dropped from the top of the 82.15 m tall tower into a vat of water. During its free fall, the lead would form a perfectly spherical droplet and solidify. Determine the velocity of the droplet right before it hits the ground. (Note: acceleration = -9.81 m/s/s) (Hint: think about the direction the droplet travels when considering its displacement.) ___________m/sIn this experiment, a 1-kilogram mass was linked to a spring with a spring constant of 5N/m and was stretched 40 cm from its original location by the spring. It was released all of a sudden. Calculate the velocity of the mass when it returns to its initial place.
- Page Up Num Lock Insert Home NO. DATE velicity function Ha 8.A particle is moving with a VCt) =[(5.4)Ĉ t 78.0)5 +(0€) ū I m/s What is Hhe magntude of the particle's velocity alony horizontal ter 2.0 siIn a nuclear scattering experiment, a beam of 4-MeV alpha particles (helium nuclei) strikes a target consisting of helium gas, so that the falling particle and the target particle have equal masses. If the incident alpha particle is dispersed at an angle of in 30° the laboratory system, find its kinetic energy and the kinetic energy of the target particle's recoil, as part of the initial kinetic energy of the incident alpha particle. (Assume the target particle is at rest .and the collision is elastic P2 in which o = 30° +9 = 90° pi p, =0 P = Pi cos , + p2 sin o 0 = p{ sino - p2 cos Pi = P1 cos =p, cos 30° =- 2 P2 = P1 sing = P; sin 30° =. 12 Pi T = 2m, 1 Pi T=1 MeV 2m, Pi -=T= 3 MeV 2m, T = 2m2 %3D 4. Laboratory system H.W. What is the scattering angle with respect to the center of mass system of the previous example (in a nuclear scattering experiment, a beam of alpha-4-MeV particles hits ...)? (Helium nuclei) is a target consisting of helium $(... gasA cube measuring bxbxb with mass m was initially resting on a flat horzontal surface. The minimum inpulse needed to cause tipping was found to be: Lmin= m[(2gb/3)(21/2-1)]1/2 If the impulse is increased to 2Lmin find the kinetic energy of the cube when side OA hits the ground.