« previous next »

Author Question: An empty coal-car (mass 20,000.kg) of a train coasts along at 10.m/s. An unfortunate 3000. kg ... (Read 641 times)

student77

  • Hero Member
  • *****
  • Posts: 567
on: Jul 27, 2018
An empty coal-car (mass 20,000.kg) of a train coasts along at 10.m/s. An unfortunate 3000. kg elephant falls from a bridge and drops vertically into the car. Determine the speed of the car immediately after the elephant is added to its contents.
 
  What will be an ideal response?

Question 2

At a depth of about 1030. m in the sea the pressure has increased by 100. atmospheres (to about 107 N/m2). By how much has 1 m3 of water been compressed by this pressure? The bulk modulus of water is 2.3  109 N/m2.
 
  What will be an ideal response?


ghepp

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 27, 2018
Answer to Question 1

8.7 m/s

Answer to Question 2

0.0043 m3


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

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?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

The Structure of an Old Low-Mass Star The Structure of an Old Low-Mass Star
Mass Extinctions Mass Extinctions
Coal Strip Mining in North Dakota Coal Strip Mining in North Dakota
Body mass index table. Body mass index table.
Chemical equilibrium and the law of mass action. Chemical equilibrium and the law of mass action.
Gravitational Force Due to a Distribution of Mass problem 2 Gravitational Force Due to a Distribution of Mass problem 2
Video: Coronary Heart Disease

For a complete list of videos, visit our video library