College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- The pinion gear A on the motor shaft is given a constant angular acceleration a = 6 rad/s? (Figure 1) Part A If the gears A and B have the dimensions shown, determine the angular velocity of the output shaft C, when t = 6 s starting from rest. The shaft is fixed to B and turns with it. Express your answer to three significant figures and include the appropriate units. HA ? WC = WB = Value Units Submit Request Answer Figure 1 of 1 Part B If the gears A and B have the dimensions shown, determine the angular displacement of the output shaft C, when t = 6 s starting from rest. The shaft is fixed to B and turns with it. Express your answer to three significant figures and include the appropriate units. 125 mm HA 35 mm Oc = 0B = Value Units Submit Request Answerarrow_forwardGears A, B, C, and D have radii of 20 mm, 50 mm, 30 mm, and 75 mm, respectively. (Figure 1) Figure F 49°F Rain off and on 1 of 1arrow_forwardneed help understandingarrow_forward
- A high-speed drill reaches 2500 rpm in 0.50 s. Part A What is the drill's angular acceleration? Express your answer in radians per second squared. 7VE ΑΣΦ α= Submit rad/s² You have already submitted this answer. Enter a new answer. No credit lost. Try again. Part B 0 = Previous Answers Request Answer ? Through how many revolutions does it turn during this first 0.50 s? Express your answer in revolutions. Π ΑΣΦ ? revarrow_forwardThe spool has a mass of 90 kg and a radius of gyration kc = 0.3 m (Figure 1) Part A If the coefficients of static and kinetic friction at A are us = 0.2 and u = 0.15, respectively, determine the angular acceleration of the spool if P = 620 N. Express your answer to three significant figures and include the appropriate units. HA ? a = Value Units Submit Request Answer Figure Provide Feedback Next > P G. 250 mm 400 mmarrow_forwardPart A Determine the velocity of the plate at the instant 0 = 30°, if at this instant the circular cam is rotating about the fixed point O with an angular velocity w = 4 rad/s and an angular acceleration a = 2 rad/s?. (Figure 1) Assume the direction to the right as positive. Express your answer to three significant figures and include the appropriate units. HẢ v = Value Units Part B Determine the acceleration of the plate at the instant e = 30°. Express your answer to three significant figures and include the appropriate units. Figure w, aarrow_forward
- Could i have some help breaking down a and b?arrow_forwardTwo woights are connoctod by a vory lIght, Moxblo cord that passes over an 62.0 N frictionless pulluy of radius 0.300 m The pulley is a solid uniform disk and is supported by a hook connected to the ceiling (Figure 1) Part A What force does the ceiling exert on the hook? Express your answer with the appropriate units. Figure 1 of1 > F. Value Units Submit ResuestAnawer Provide Feedback 125 N 75.0 Narrow_forwardDario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates with constant speed 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration. Part A What is the magnitude of the angular acceleration of the salad spinner as it slows down? Express your answer numerically in radians per second per second. ▸ View Available Hint(s) a = 8.38 radians/s² Submit ✓ Correct Part B Previous Answers How long does it take for the salad spinner to come to rest? Express your answer numerically in seconds. ▸ View Available Hint(s) t = Templates Symbols undo redo reset keyboard shortcuts help, Sarrow_forward
- A circular saw blade 0.170 m in diameter starts from rest In 8.00 s it reaches an angular velocity of 170 rad/s with constant angular acceleration For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Rotation of a bicycle whheel.arrow_forwardA sphere and a ring exists. They both have a mass of M, and has a radius of r. They roll, with no slipping, down a track as depicted in the image. The two objects are at rest initially, and will shoot vertically upwards once they reach the end of the path. 1. Please explain which object, ring or sphere, will reach greater heights and why? 2. For the max height that the ring will reach, please determine and algebraic expression.arrow_forwardUsing the equations attached solve the following: 1.What is the average angular velocity between t = 2.0 s and t=3.1 s ? Express your answer using two significant figures. 2.What is the average angular acceleration between t = 2.0 s and t =3.1 s ? Express your answer using two significant figures.arrow_forward
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