b) A human can generate power of about 80 W. If one person works toraise water for 4 hours every day, what is the approximate volume ofwater that can be pumped from a 5 meter deep well in a month,assuming 50% efficiency?c) The water is to be used to irrigate a field of wheat, which requires atotal of 15 cm depth of water over a three-month growing season. Usingthe answer from (b), how much area can be irrigated to a depth of 5 cmeach month?d) If the yield of wheat is 0.1 kg/m², and the energy equivalent of wheatis 7.5 MJ/kg, what is the total energy produced by the field of wheatover a season?e) Assuming a food consumption per person of 10 MJ per day, howmany person-days of food is generated by this field over a year?

Name: b) A human can generate power of about 80 W. If one person works tora
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: b) A human can generate power of about 80 W. If one person works toraise water for 4 hours every day, what is the approximate volume ofwater that can be pumped from a 5 meter deep well in a month,assuming 50% efficiency?c) The water is to be used to

Answered: b) A human can generate power of about…

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)...

See similar textbooks

Related questions

Topic Video

Question

b) A human can generate power of about 80 W. If one person works to
raise water for 4 hours every day, what is the approximate volume of
water that can be pumped from a 5 meter deep well in a month,
assuming 50% efficiency?
c) The water is to be used to irrigate a field of wheat, which requires a
total of 15 cm depth of water over a three-month growing season. Using
the answer from (b), how much area can be irrigated to a depth of 5 cm
each month?
d) If the yield of wheat is 0.1 kg/m², and the energy equivalent of wheat
is 7.5 MJ/kg, what is the total energy produced by the field of wheat
over a season?
e) Assuming a food consumption per person of 10 MJ per day, how
many person-days of food is generated by this field over a year?

Expert Solution

Introduction:

Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for you. To get remaining sub-part solved please repost the complete question and mention the sub-parts to be solved.

Concept of Power and Work:

Work (W):

If there is motion in an object due to the application of force then there is certain amount of energy being transferred to that object. That energy is known as Work done on that object.

Work done (W in J)= Force applied on an object (F in N) $\times$ Distance travelled by that object (d in m).

Power (P):

It is amount of work done per unit time.

P= $\frac{W}{t}$ . SI unit of Power is Watt (W or J/s).

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions