« 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 114 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?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Three toddlers sit on the floor playing with a toy. Three toddlers sit on the floor playing with a toy.
The relationship between the height of the firing line and length of the spark line can be ... The relationship between the height of the firing line and length of the spark line can be ...
Names for Places from Millions to Millionths Names for Places from Millions to Millionths
A 2-kg box of taffy candy has 40 J of potential energy relative to the ground. Its height above ... A 2-kg box of taffy candy has 40 J of potential energy relative to the ground. Its height above ...
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Locate the following places by reference number on the map:Key Locales of Political, Economic, ... Locate the following places by reference number on the map:Key Locales of Political, Economic, ...
Video: Febrile Seizure

For a complete list of videos, visit our video library