1. The population P of elephants in a wild animal preserve changes with time (in years) according to the equation dP - 0.0005P(190 - P)dt = 0. If there are 46 elephants initially, in how many years will the population reach 90? 2. For earth, let g and R be the acceleration due to gravity and the radius, respectively. If another Planet B has one-half the acceleration due to gravity of the earth but four times its radius, then the velocity of escape of that same object placed on Planet B is twice that on earth. (True or False)
1. The population P of elephants in a wild animal preserve changes with time (in years) according to the equation dP - 0.0005P(190 - P)dt = 0. If there are 46 elephants initially, in how many years will the population reach 90? 2. For earth, let g and R be the acceleration due to gravity and the radius, respectively. If another Planet B has one-half the acceleration due to gravity of the earth but four times its radius, then the velocity of escape of that same object placed on Planet B is twice that on earth. (True or False)
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter2: Kinematics
Section: Chapter Questions
Problem 10PE: Tidal friction is slowing the rotation of the Earth. As a result, the orbit of the Moon is...
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1. The population P of elephants in a wild animal preserve changes with time (in years) according to the equation dP - 0.0005P(190 - P)dt = 0. If there are 46 elephants initially, in how many years will the population reach 90?
2. For earth, let g and R be the acceleration due to gravity and the radius, respectively. If another Planet B has one-half the acceleration due to gravity of the earth but four times its radius, then the velocity of escape of that same object placed on Planet B is twice that on earth. (True or False)
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