10-09formula2 - stray marks or the answer sheet may not be...

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77777 77777 PHYSICS DEPARTMENT PHY 2048 Test 2 October 9, 2006 Name (print): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5-DIGIT NUMBER AT THE TOP OF EACH PAGE. DIRECTIONS (1) Code your test number on your pink answer sheet (use 76–80 for the 5-digit number) . Code your name on your answer sheet. Darken circles completely (errors can occur if too light). Code your UF student number on your answer sheet. (2) Print your name on this sheet and sign it also. (3) Do all scratch work on this exam to the right of the questions, and anywhere else on this exam that you like. At the end of the test, this exam printout is to be turned in. No credit will be given without both the answer sheet and printout, with the scratch work which most questions demand of anyone. (4) You will receive one point for each correct answer and zero points for an incorrect answer or no answer. (5) Blacken the circle of your intended answer completely, using a number 2 pencil on the answer sheet. Do not make any
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Unformatted text preview: stray marks or the answer sheet may not be read properly. >>>>>>>> BEFORE YOU FINISH <<<<<<<< Fold the computer printout so your name is on top, include any figure sheet inside the printout. Hand in the green answer sheet separately. Useful Equations: cos 2 θ + sin 2 θ = 1 sin(2 θ ) = 2cos( θ )sin( θ ) cos(2 θ ) = cos 2 θ-sin 2 θ ~ A · ~ B = A x B x + A y B y + A z B z ~ A · ~ B = | ~ A || ~ B | cos θ sin30 ◦ = cos60 ◦ = 1 / 2 ~x-~x = ~v t + 1 2 ~at 2 ~v = ~v + ~at ~ V AC = ~ V AB + ~ V BC cos30 ◦ = sin60 ◦ = √ 3 / 2 1 2 ( v 2-v 2 ) = ~a · ( ~x-~x ) v = √ 2 ax f k = μ k F N tan30 ◦ = √ 3 / 3 ~ F = m~a g = 10m / s 2 f s ≤ μ s F N tan60 ◦ = √ 3 a r =-v 2 /R cos45 ◦ = sin45 ◦ = √ 2 / 2 W = R ~ F · d~x W = ~ F · ~ d W ext = Δ K + Δ U sin37 ◦ ≈ cos53 ◦ ≈ 3 / 5 K = 1 2 mv 2 W S = 1 2 kx 2 ~ F S =-k~x cos37 ◦ ≈ sin53 ◦ ≈ 4 / 5 P = dW dt U = mgh U = 1 2 kx 2 P = ~ F · ~v...
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This note was uploaded on 12/07/2011 for the course PHY 2048 taught by Professor Field during the Fall '08 term at University of Florida.

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