HW3 - HW 3 Page 1 of 3 WebAssign HW 3(Homework Current Score 14 SAI SAMINENI Phys 2210 Physics for Scientists and Engineers section 1 Fall 2011

HW3 - HW 3 Page 1 of 3 WebAssign HW 3(Homework Current...

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HW 3 (Homework) SAI SAMINENI Phys 2210 - Physics for Scientists and Engineers, section 1, Fall 2011 Instructor: David C. Ailion Current Score : – / 14 Due : Saturday, September 3 2011 10:00 AM MDT 1. –/2 points You land on an unknown planet somewhere in the universe that clearly has weaker gravity than Earth. To measure g on this planet you do the following experiment: A ball is thrown upward from the ground. It passes a windowsill 15.0 m above ground and is seen to pass by the same windowsill 2.00 s after it went by on its way up. It reaches the ground again 5.00 s after it was thrown. Calculate the magnitude of g (the acceleration due to gravity) at the surface of this planet. g = (No Response) 5.71 m/s 2 Solution or Explanation Click Here 2. –/2 points Two points in a plane have polar coordinates ( 2.40 m, 30.0° ) and ( 4.30 m, 130.0° ). .HINT: Use trigonometry. (a) Determine the Cartesian coordinates of these points. ( 2.40 m, 30.0° ) x = (No Response) 2.08 m y = (No Response) 1.2 m ( 4.30 m, 130.0° ) x = (No Response) -2.76 m y = (No Response) 3.29 m (b) Determine the distance between them.
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