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

Author Question: In braking an automobile, the friction between the brake drums and brake shoes converts the car's ... (Read 209 times)

Jipu 123

  • Hero Member
  • *****
  • Posts: 569
on: Aug 6, 2020

Question 1

How much water at 20°C is needed to melt 1 kilogram of solid mercury at its melting point of −39°C? (The heat of fusion of mercury is 2.8 cal/gram).


Question 2

In braking an automobile, the friction between the brake drums and brake shoes converts the car's kinetic energy into heat. If a 1 500-kg automobile traveling at 30 m/s brakes to a halt, how much does the temperature rise in each of the four 8.0-kg brake drums? (The specific heat of each iron brake drum is 448 J/kg⋅°C).
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Jipu 123 on Aug 6, 2020

nanny

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Aug 6, 2020
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 56% of students answer this correctly


Jipu 123

  • Member
  • Posts: 569
Reply 2 on: Aug 6, 2020
Thanks for the timely response, appreciate it

raenoj

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

A missense mutation that converts the normal ras gene into an oncogene. A missense mutation that converts the normal ras gene into an oncogene.
A Mitochondrion Converts Energy from Fuel Molecules into ATP A Mitochondrion Converts Energy from Fuel Molecules into ATP
Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ... Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ...
Knuckle friction between and over the shoulder blades. Superficial friction between shoulder blade ... Knuckle friction between and over the shoulder blades. Superficial friction between shoulder blade ...
Use fingertips to apply friction to muscle attachments along inferior length of the clavicle. Use fingertips to apply friction to muscle attachments along inferior length of the clavicle.
Effects of Friction on Wind Effects of Friction on Wind
Video: Prone Position

For a complete list of videos, visit our video library