7. A revolving beacon is situated 3600 feet off a straight shore. If the beacon turns at 2 revolutions per minute, how fast does the beam sweep along the shore at a point 4800 feet from the nearest point?
7. A revolving beacon is situated 3600 feet off a straight shore. If the beacon turns at 2 revolutions per minute, how fast does the beam sweep along the shore at a point 4800 feet from the nearest point?
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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![7. A revolving beacon is situated 3600 feet off a straight shore. If the beacon turns at 2
revolutions per minute, how fast does the beam sweep along the shore at a point 4800 feet
from the nearest point?
8. Two ships sail from A at the same time. One sails south at 15 miles per hour; the other sails
east at 25 miles per hour for 1 hour and then turns north. Find the rate of rotation of the line
joining them after 3 hours.
9. Differentiate y = (x² – 4)2/(x²) + (1/2)[Arcsec(x/2)].](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9379760a-2901-4974-a754-e5d9e9aee5ee%2Fa9c6276b-f3f8-4241-9ffb-480ac8810ac2%2Ffh90kvh_processed.png&w=3840&q=75)
Transcribed Image Text:7. A revolving beacon is situated 3600 feet off a straight shore. If the beacon turns at 2
revolutions per minute, how fast does the beam sweep along the shore at a point 4800 feet
from the nearest point?
8. Two ships sail from A at the same time. One sails south at 15 miles per hour; the other sails
east at 25 miles per hour for 1 hour and then turns north. Find the rate of rotation of the line
joining them after 3 hours.
9. Differentiate y = (x² – 4)2/(x²) + (1/2)[Arcsec(x/2)].
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