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e docs.google.com My Drive-Googie Drive utited document . Google Docs 100%. Normal text Arial 4) The "Leaning Tower of Pisa" stands 55.6 m tall at its highest point. The top-level veranda stands about 44.6 m above the ground, on the leeward side. If a one Euro coin is dropped from the veranda, calculate it's final velocity when it hits the ground. Choose the closest answer from those provided 5) At the Istanbul, Turkey Formula-One (F-1) race circuit, F-1 race cars routinely maintain speeds of 265 km/hr when rounding turn number 8 on the circulit, where this tough turn is called, Diabolica". When going around this turm, the race car drivers experience large latera accelerations, with average values of 5 g's; where these large g-foroes last for approximately 7 seconds. Assume that the cars execute uniform circular motion at constant radius when rounding Diabolica. Calculate the radius of Diabolic in meters. Choose the closest answer from those provided. 6) A Red Cross relief plane was sent to Nambia by a special UN envoy, ordered by President Trump Fortunately, the Red Cross pilet knew that there is no country called "Namibia", and that they should be flying to Namibia. The relief plane was flying at a constant speed of VO 500 km/hr, at an altitude of 5 km. On crossing the border into Namibia, the pilot was instructed to drop a relief nt T, on the ground in the plane crews forward field of view. At what angle of sight Theta-S, measured from the vertical, should the plane crew release the package so that it lands on target? Choose the closest answer from those provided. 7) In Bohr's model of the hydrogen atom, an electron revolves around the proton in a circular orbit of radius R 5.28 x 10-11 m, with speed v = 2.18 x 10.6 m/s. Calculate the electron's acceleration. Choose the closest answer from those provided. 8) An electron with initial velocity VO·1x10+4 mis enters a 1 cm wide region in a cathode ray tube, where it is accelerated to a final velocity of Vf 4 x 10+6 m/s. Calculate the acceleration of the electron. Choose the closest answer from those provided.Explanation / Answer
4.
consider the motion along the vertical direction
Y = height dropped = - 44.6 m
a = acceleration = - 9.8
Vo = initial velocity at the top = 0
Vf = final velocity at the bottom
using the equation
Vf2 = Vo2 + 2 a Y
Vf2 = (0)2 + 2 (-9.8) (- 44.6)
Vf = 29.6 m/s
7)
acceleration is given as
a = v2/R = (2.18 x 106)2/(5.28 x 10-11) = 9
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