For question 13

For question 14

For question 17 I need part A-E answered

For question 18 I need part B & C answered

(6%} Prom-13: A circular air hockey,r puck of radius r slides across a frictionless air hockey table and is subjected to several forces as shown below. The magnitude and direction of each force is given. Forces are applied at either the center of mass of the puck, the outeredge (a distance r from the center). or a distance halfan (#2) between the center and the outer edge. thccxpcrtta.com @thcenpcrttaxom - tracking id: 9N69-BE-48-4A-ABBB-3i'5l4. In accordance with Expert TA's'Ten'ns of Service. copying this information to any solutions s raring website is strictly forbidden. Doing so may result in termination of your Expert TA Aeeou nt. D 3 Selecttbe examples below that have a net torque of zero about the axis perpendicular to the page and extending from the center of the puck. Grade Summary C] C] C] Deductions 0% F F Potential was: Submissions Attempts mnaim'ng: t [100% per attest-um) detailed View Hints: 0% deduction per hint. Hints rennining: i Feedback: 0% deduction pear feedback. {6%) Problem 14: Some College Physics students are studying periodic motion using an oscillating mass on a spring. After collecting data, the).' plotted the position versus time graph shown. The function that represents the data on the graph may be written as x = Aeos(mt + tp) with (p E [0.215) D a The phase constant for the graph presented is most nearly [1 (9:90 ([3:45' (p=135' (p=180' [:1 tp = 315' [:1 {p = 270' [:1 'P = 0' [:1 [p = 225' Grade Summary Deductions II' r Potential 100% Submissions Attempts remaining: 1 \"NH\" r pcr attempl] detailed. view (6%) Problem 17: In the analysis of a block-spring system undergoing simple harmonic motion, the mass of the spring is usually considered negligible. However, when we do account for the mass of the spring, we nd that its effect is to increase the period. Let the masses of the block and spring be M and m, respectively. Assume the spring is uniform and the speed of a slice of the spring is directly proportional to its distance from the xed end. For example, the speeds of the spring at its xed end, its mid-point, and the point where it connects to the block are 0, viz, and v, respectively, where v is the instantaneous speed of the block. & 20 I}? Part [a] Enter an expression for the kinetic energy of the spring in terms of m and v. Grade Summary K = I Deductions Potential 100% Submissions Attempts remaining: _ { per attempt} detailed view Submit Hint. l l Hints: deduction per hint. Hints remaining: _ Feedback: deduction per feedback. . g 21] \"He- Part (1)) Calculate the kinetic energy, in joules, of a m. = 0.095-kg spring in an oscillating block-spring system, when the block is moving at a speed of v = 1.1 this. . & 20 '9'9 Part (cl Now write the kinetic energy of the spring as KE = 0.5mev2, where v is the block's instantaneous speed and me is termed the effective mass of the spring. Enter an expression for me in terms of m and v. - & 21] \"He- Part ((1) Calculate the effective mass, in kilograms, of an m = 0.095-kg spring in an oscillating block-spring system. - & 2t] 'fo Part (e: Assume the mass in the formula for the period of oscillation of a block-spring system can be replaced by M + me. For M = I .2 kg and m = 0.095 kg by hovtr much, in seconds, does the formula's value increase when the spring's effective mass is included in the calculation? Take a spring constant of k = 32 me. (6%) Problem 18: The shadow of a pendulum cast on a at board moves on a straight line. By placing the x-axis on the straight line with the origin at the middle of the total path, the x-coordinate of the shadow is given by the following function: x(r) = 39eos(m), where r is in seconds and x is in centimeters. D Q 25 9-3 Part [a] Find the speed, in centimeters per second, of the shadow at r = \"4 s. Correct Answer Studenl Final Submission Feedback Not available until end date v = - [63 v = 163.0 Grade Stnnmm'y Deduction for Final Submission Deductions for Incorrect Submissions, Hints and Feedback ['3] 0% Student Grade = 100 - - I} = 0% Submission History,r AH Dem \"mu :m' displayed in (II-rum! Baird\"!!! Hun-Jim? .rm'nmsrirm dare fme'J HInI'r:'.rrt' fair work. Date Tim Answer Hints Feedback J May 24,2023 9:40PM v=- 163 v = 163.u a 25% Part (D) Find the speed, in centimeters per second, of the shadow at t: li2 s. a, 25% Part to} Find the magnitude of the acceleration, in meters per second squared, of the shadows motion at r = 18 s. 8 25% Part ((1) How much distance, in centimeters, does the shadow travel in 2|] sec? (1': 15.60 X Incorrect! Feedback: is available. IIIITI