« previous next »

Author Question: Two identical arrows, one with twice the kinetic energy of the other, are fired into a bale of hay. ... (Read 45 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
Two identical arrows, one with twice the kinetic energy of the other, are fired into a bale of hay. Compared with penetration of the slow arrow, the faster arrow penetrates
 
  A) the same distance.
  B) twice as far.
  C) four times as far.
  D) more than four times as far.
  E) none of the above

Question 2

About 40 J is required to push a crate 4 m across a floor. If the push is in the same direction as the motion of the crate, the force on the crate is about
 
  A) 4 N.
  B) 10 N.
  C) 40 N.
  D) 160 N.


kbennett34

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Basic overview of energy and human life. Basic overview of energy and human life.
In a project on job discrimination, Pager prepared identical résumés for the teams, but with one ... In a project on job discrimination, Pager prepared identical résumés for the teams, but with one ...
Because of the high physical activity and the amount of energy expended by the brains of 2- to ... Because of the high physical activity and the amount of energy expended by the brains of 2- to ...
Energy in China Energy in China
Gravitational Potential Energy Gravitational Potential Energy
The leptin–melanocortin pathway of energy balance The leptin–melanocortin pathway of energy balance
Video: Blood Flow through the Human Heart

For a complete list of videos, visit our video library