« previous next »

Author Question: Jasper takes two books of mass m1 and m2 off the floor and places them on a shelf at height h. The ... (Read 139 times)

dbose

  • Hero Member
  • *****
  • Posts: 597
on: Jul 28, 2018
Jasper takes two books of mass m1 and m2 off the floor and places them on a shelf at height h. The change in potential energy of the book with mass m1 is four times that of the book with mass m2 . What is the relationship between m1 and m2?
 a. m1 = 0.25m2
  b. m1 = 0.5m2
 c. m1 = 2m2
 d. m1 = 4m2

Question 2

A boat with mass of 1 200 kg is traveling at 12 m/s. What is the magnitude of the force required to stop the boat if it undergoes a displacement of 85 m?
 a. 2 000 N
  b. 170 N
  c. 8 500 N
  d. 1 000 N


dlook33

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Brain mass as a function of body mass in mammals. Brain mass as a function of body mass in mammals.
The mass media not only reflect gender stereotypes but they also play a role in changing them. ... The mass media not only reflect gender stereotypes but they also play a role in changing them. ...
Body mass index table. Body mass index table.
Advection of an air mass with a different ELR (environmental lapse rate). Advection of an air mass with a different ELR (environmental lapse rate).
Adolescent girls reach adult height sooner than boys because their bones grow more rapidity Adolescent girls reach adult height sooner than boys because their bones grow more rapidity
Mass Wasting Triggers Mass Wasting Triggers
Video: Cleavage and Implantation Animation

For a complete list of videos, visit our video library