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

Author Question: An amount of work equal to 2.0 J is required to compress the spring in a spring-gun. What is the ... (Read 51 times)

pane00

  • Hero Member
  • *****
  • Posts: 579
on: Jul 28, 2018
An amount of work equal to 2.0 J is required to compress the spring in a spring-gun. What is the launch speed of a 26.0-g marble?
 a. 12.4 m/s
  b. 13.4 m/s
  c. 8.8 m/s
  d. 3.92 m/s
  e. 0.392 m/s

Question 2

A 2.50-kg projectile is launched at an angle of 20.0 above the horizontal with an initial speed of 100 m/s from the top of a building 40 m high. If the projectile is traveling 85.0 m/s at its maximum height of 47.0 m, how much work has been done on the projectile by air friction?
 a. 3.3E+3 J
  b. 1.7E+2 J
  c. 3.5E+3 J
  d. 2.4E+4 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

a


pane00

  • Member
  • Posts: 579
Reply 2 on: Jul 28, 2018
:D TYSM

adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s
The medical assisting profession offers many settings in which to pursue your career. Good communica The medical assisting profession offers many settings in which to pursue your career. Good communica
How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition
Turning Play into Work Turning Play into Work
Find the factor demand for labour and the amount of output it will produce. Show all ... Find the factor demand for labour and the amount of output it will produce. Show all ...
Twenty percent of the automobiles inspected at a state inspection station required repairs to ... Twenty percent of the automobiles inspected at a state inspection station required repairs to ...
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library