This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: To drive a typical car at 40 mph on a level road for one hour requires about 3.2 107 J of energy. ... (Read 90 times)

09madisonrousseau09

  • Hero Member
  • *****
  • Posts: 559
on: Jul 29, 2018
To drive a typical car at 40 mph on a level road for one hour requires about 3.2  107 J of energy. Suppose we tried to store this much energy in a spinning, solid, uniform, cylindrical flywheel.
 
  A large flywheel cannot be spun too fast or it will fracture. If we used a flywheel of diameter 1.2 m and mass 400 kg, what angular speed would be required to store 3.2  107 J?
  A) 3600 rad/s B) 940 rad/s C) 530 rad/s D) 5500 rad/s E) 1800 rad/s

Question 2

Find the net work done by friction on a box that moves in a complete circle of radius 1.82m on a uniform horizontal floor. The coefficient of kinetic friction between the floor and the box is 0.25, and the box weighs 65.0N
 
  A) 1800 J B) 370 J C) 0 J D) 190 J
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

todom5090

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


09madisonrousseau09

  • Member
  • Posts: 559
Reply 2 on: Jul 29, 2018
Gracias!

bigcheese9

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

The human body produces and destroys 15 million blood cells every second.

Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
A typical large tool box, showing just one of many drawers. A typical large tool box, showing just one of many drawers.
A typical electric cooling fan assembly showing the radiator and related components. A typical electric cooling fan assembly showing the radiator and related components.
A Typical aa Flow A Typical aa Flow
Typical features of expression vectors for E. coli Typical features of expression vectors for E. coli
Comparing uncontrolled and controlled energy release. Comparing uncontrolled and controlled energy release.
Video: Glycolysis - Introduction to ATP and the burning of sugar

For a complete list of videos, visit our video library