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

Author Question: An amount of work equal to 3.0 J is required to compress the spring in a spring-gun. What is the ... (Read 27 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jul 28, 2018
An amount of work equal to 3.0 J is required to compress the spring in a spring-gun. What is the launch speed of a 15 g marble?
 a. 14 m/s
  c. 18 m/s
  b. 15 m/s
  d. 20 m/s

Question 2

When gasoline is burned, it gives off 46,000 J/g of heat energy. If an automobile uses 13.0 kg of gasoline per hour with an efficiency of 18, what is the average horsepower output of the engine? (1 hp = 746 W)
 a. 47 hp
  c. 67 hp
  b. 110 hp
  d. 40 hp


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lolol

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

D


sdfghj

  • Member
  • Posts: 552
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street
The physician and medical assistant will often work together to choose appropriate educational ... The physician and medical assistant will often work together to choose appropriate educational ...
How Self-Fulfilling Stereotypes Work. How Self-Fulfilling Stereotypes Work.
Work is done by an external agent Work is done by an external agent
A sample of work by a Grade 4 student with a specific learning disorder A sample of work by a Grade 4 student with a specific learning disorder
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
Video: Bone Growth and Remodeling

For a complete list of videos, visit our video library