19. If your body is 20 percent efficient in converting food intake to useful work, how many kcal of food must you eat in one day to do 25×105 joules of work without tapping any of your body’s energy reserves?(1 kcal = 1000 calories) v = { (average speed) d = v,t + at? (distance under acceleration)W %3D mg (Weight) а %3Fact(Acceleration) F= Gm,m2(Gravity Law)(Kinetic Energy) PE=mgh (Potential Energy)p = mvW = F ·d (Work Done) Q= mcAT (Heat Energy) Q=mL (Latent Heat Energy)effciency =%3Dwork doneenergy provided

Write the given values with the suitable variables. η=20 %W=25×105 J Here, η and W are the…

If your body is 20 percent efficient in converting food intake to useful work, how many kcal of food must you eat in one day to do 25×105 joules of work without tapping any of your body’s energy reserves?

If your body is 20 percent efficient in converting food intake to useful work, how many kcal of food must you eat in one day to do 25×105 joules of work without tapping any of your body’s energy reserves?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

19. If your body is 20 percent efficient in converting food intake to useful work, how many kcal of food must you eat in one day to do 25×10⁵ joules of work without tapping any of your body’s energy reserves?

(1 kcal = 1000 calories)

v = { (average speed) d = v,t + at? (distance under acceleration)
W %3D mg (Weight) а %3
Fact
(Acceleration) F= Gm,m2
(Gravity Law)
(Kinetic Energy) PE=mgh (Potential Energy)
p = mv
W = F ·d (Work Done) Q= mcAT (Heat Energy) Q=mL (Latent Heat Energy)
effciency =
%3D
work done
energy provided

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