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 26 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
Excellent

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Forages, such as hay, are required by all horses Forages, such as hay, are required by all horses
Decapods, from Ernst Haeckel's 1904 work Kunstformen der Natur Decapods, from Ernst Haeckel's 1904 work Kunstformen der Natur
Good computer skills are now required to be a successful member of an office staff. Good computer skills are now required to be a successful member of an office staff.
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
Drug A is more potent than Drugs B and C. Drugs A and C have equal efficacy because both drugs have ... Drug A is more potent than Drugs B and C. Drugs A and C have equal efficacy because both drugs have ...
Arguments take place when partners are home from work Arguments take place when partners are home from work
Video: EpiPen Animation (Part 1)

For a complete list of videos, visit our video library