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

Author Question: A boat with mass 950 kg is heading into the harbor at a speed of 10.0 m/s. How much work is required ... (Read 138 times)

karlynnae

  • Hero Member
  • *****
  • Posts: 599
on: Jul 28, 2018
A boat with mass 950 kg is heading into the harbor at a speed of 10.0 m/s. How much work is required to slow the boat to 1.0 m/s?
 a. 4.8E+4 J
  b. 9.4E+4 J
  c. 4.7E+4 J
  d. 2.3E+4 J

Question 2

A 6.1-g bullet has a velocity of 475 m/s when it penetrates a wooden door to a depth of 3.5 cm. Assuming the frictional force that stops the bullet is constant, how long does it take from the time the bullet hits the door till it comes to a stop?
 a. 1.5E4 s
  b. 7.4E5 s
  c. 4.5E2 s
  d. 3.7E3 s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stillxalice

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

a


karlynnae

  • Hero Member
  • *****
  • Posts: 599
Reply #2 on: Jul 28, 2018
Thank you!


stillxalice

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Helping maintain accurate patient records is a critical part of the medical assistant's work. Helping maintain accurate patient records is a critical part of the medical assistant's work.
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
Calculation of body mass index. To determine your BMI, find the value for your height on the left ... Calculation of body mass index. To determine your BMI, find the value for your height on the left ...
Where do Psychological Practitioners Work? Where do Psychological Practitioners Work?
Multitasking at work Multitasking at work
A system absorbs 623 J of heat while doing 457 J of work. What is the value of U? A system absorbs 623 J of heat while doing 457 J of work. What is the value of U?
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library