A group of athletes were tested for isometric endurance by measuring the length of time they could resist a load pulling on their legs while seated. The approximate amount of time (called the holding time) that they could resist the load was given by the formula t = 31,293w^-1.5, where w is the weight of the load in pounds and the holding time t is measured in seconds. a. Determine the holding time for a load of 29 lb. b. When the weight of the load is tripled, by what factor is the holding time changed?
A group of athletes were tested for isometric endurance by measuring the length of time they could resist a load pulling on their legs while seated. The approximate amount of time (called the holding time) that they could resist the load was given by the formula t = 31,293w^-1.5, where w is the weight of the load in pounds and the holding time t is measured in seconds. a. Determine the holding time for a load of 29 lb. b. When the weight of the load is tripled, by what factor is the holding time changed?
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.22P: 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas...
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A group of athletes were tested for isometric endurance by measuring the length of time they could resist a load pulling on their legs while seated. The approximate amount of time (called the holding time) that they could resist the load was given by the formula t = 31,293w^-1.5, where w is the weight of the load in pounds and the holding time t is measured in seconds.
a. Determine the holding time for a load of 29 lb.
b. When the weight of the load is tripled, by what factor is the holding time changed?
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