×
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 14 - Problem 27p
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 14 - Problem 27p

×

# In a hot day’s race, a bicyclist consumes 8.0 L of water

ISBN: 9780130606204 3

## Solution for problem 27P Chapter 14

Physics: Principles with Applications | 6th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Physics: Principles with Applications | 6th Edition

4 5 1 407 Reviews
29
0
Problem 27P

Problem 27P

In a hot day’s race, a bicyclist consumes 8.0 L of water over the span of four hours. Making the approximation that all of the cyclist’s energy goes into evaporating this water as sweat, how much energy in kcal did the rider use during the ride? (Since the efficiency of the rider is only about 20%, most of the energy consumed does go to heat, so our approximation is not far off.)

Step-by-Step Solution:
Step 1 of 3

SolutionConsider the pendulum has some small angle oscillation,in this case pendulum undergosimple harmonic motion.the time periods of the pendulum on the moon and on the earth are T earth 2 earthearth and Tmoon = 2L moon/gmoonHere consider T = T earth moon 2L earthgearth 2 moongmoon Lmoon= (g moongearthLearth =(1.62 m/s /9.8 m/s )(2.00 m) =33.1 cmAcceleration due to gravity on moon is smaller,a smaller pendulum length have same periodon the earth.

Step 2 of 3

Step 3 of 3

#### Related chapters

Unlock Textbook Solution