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  1. ...to walk you through the process of answer the question. Based on the question an airplane is safe as long as half the engines are functioning...

    1 Answers · Science & Mathematics · 22/05/2007

  2. ...however, it went down while he was following it, he and the model airplane must have been traveling at least 1860 miles per hour, which...

    2 Answers · Science & Mathematics · 31/10/2011

  3. Speed of sound c = 320 m/s. Mach number = 0.93 Speed of an airplane v = 0.93 × 320 = 297.6 m/s = 1071.36 km/h. Cheers ebs

    2 Answers · Science & Mathematics · 15/10/2013

  4. a) The shape is a parabola, so it's minimum height would be at the vertex. The x value of the vertex is found using x = -b/2a x = -(-12)/(2*1) = 6 sec y(6 sec) = 6^2 - 12(6) + 40 y = 4 m b) Initial height is when t = 0. y(0 sec) = 0^2 - 12(0) + 40 y = 40 m c) 40...

    2 Answers · Science & Mathematics · 24/02/2009

  5. Let S = speed of plane and W = speed of wind Distance = effective speed x time For the journey out 2400 = (S + W) x 6 or S + W = 2400 / 6 = 400 or S = 400 - W For the journey back 2400 = (S - W) x 8 or...

    1 Answers · Science & Mathematics · 16/11/2011

  6. The Law of Sines can help determine course and airspeed. The desires flight path has a 35 degree variance from the headwind pushing it north, so the angle between the wind and path is 145 degrees. The gross path has a magnitude of 200 and...

    1 Answers · Science & Mathematics · 09/03/2014

  7. <-30, 22, 13> (km)+ (1/2 h)<12, 120, 22> (km/h)= <-24, 82, 24> (km)

    1 Answers · Science & Mathematics · 14/12/2013

  8. Let v = speed of wind speed of plane on the first part of the trip = 600 + v speed of plane on the return trip = 600 - v time for the first part of the trip = distance/speed = 990/( 600 + v) time for the second part of the trip = 990 / (600 - v) total time for the round trip is 990/( 600 + v) + 990 / (600 - v...

    2 Answers · Science & Mathematics · 16/11/2012

  9. d = vt vt = 1000 => t = 1000/v (v + 50)(t - 1) = 1000 (v + 50)(1000/v - 1) = 1000 v = 200 v + 50 = 250

    1 Answers · Science & Mathematics · 10/12/2011

  10. Airplane is 12/1.5 = 8 times faster than the bus. Speed of...

    4 Answers · Science & Mathematics · 07/01/2008

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