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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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
Transcribed Image Text:58. III A javelin thrower standing at rest holds the center of the javelin
BIO behind her head, then accelerates it through a distance of 70 cm as
she throws. She releases the javelin 2.0 m above the ground
traveling at an angle of 30° above the horizontal. Top-rated javelin
throwers do throw at about a 30° angle, not the 45° you might have
expected, because the biomechanics of the arm allow them to
throw the javelin much faster at 30° than they would be able to at
45°. In this throw, the javelin hits the ground 62 m away. What was
the acceleration of the javelin during the throw? Assume that it has
a constant acceleration.
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- Given two vectors Á = 4î + 3j and B = 12î – 5j a)Find the scalar product A · B. b)Find the angle between the two vectors. c)Find the vector product A × B.arrow_forwardit View History Bookmarks Profiles Tab Window Help m Set #10: Ch. 11-Ro X WP NWP Assessment Builder UI X WP Question 4 of 10 - Problem S × Σ Quadratic Formula Calculator x + education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=098b4073-f8f5-4b0f-ae69-e5841fa7da16#/question/3 et #10: Ch. 11 - Rolling, Torque and Angular Momentum Question 4 of 10 Updates A Do you war try tonight? New iCloud To use (Clo the new Te -/1 E : In the figure here, a small, solid, uniform ball is to be shot from point P so that it rolls smoothly along a horizontal path, up along a ramp, and onto a plateau. Then it leaves the plateau horizontally to land on a game board, at a horizontal distance d from the right edge of the plateau. The vertical heights are h₁ = 3.5 cm and h₂ = 1.90 cm. With what speed must the ball be shot at point P for it to land at d = 3.0 cm? P Ball Vo= i 6% eTextbook and Media Hint Save for Later h₂ m/s Attempts: unlimited Submit Answerarrow_forwardPlot the graph T T^2(y-axin) Vs L. (X-axis) Show the straight line with data points. Label the Axés Show the equation of line on the graph + Use this equation to determine the slopeUse this slope Calcalate G Calculate % erro of G can u help me doing this partarrow_forward
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