
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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What is the tangential speed of Nairobi, Kenya, a city near the equator? The earth makes one revolu-
tion every 23.93 h and has an equatorial radius of 6380 km
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- The royal antelope of western Africa has an average mass of only 2.5 kg. Suppose thisantelope runs in a circle with a radius of 35.0 m. If a force of 8.8 N maintains this circularmotion, what is the antelope’s tangential speed?arrow_forwardAn ultracentrifuge accelerates from rest to 8 X 104 rpm in 3.5min. What is the tangential acceleration of a point 0.08m from the center?arrow_forwardAn undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1810 × 103 seconds (about 21 days) on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 255.0 × 106 m and the planet has a radius of 3.30 × 106 m, calculate the moon's radial acceleration ?cac.arrow_forward
- How do I find the tangential speed of a ball going in uniform circular motion, in the problem I'm working on, a 1.3 m long string makes a 48.8 degree angle below the hoizontal. I am confused as to how I find the w to plug into the Vt=rw equation to get the tangential speed. Thanks for your help!arrow_forwardA planet orbits a star, in a year of length 2.29 x 10’ s, in a nearly circular orbit of radius 3.81 x 1011 m. With respect to the star, determine (a) the angular speed of the planet, (b) the tangential speed of the planet, and (c) the magnitude of the planet's centripetal acceleration. (a) Number i Units (b) Number i Units (c) Number i Units >arrow_forwardAt its peak, a tornado is 62.0 m in diameter and carries 120 km/h winds. What is its angular velocity in revolutions per second? rev/sarrow_forward
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