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

Author Question: The reason that you would use a ramp to carry a weight to the top of a platform, rather than lifting ... (Read 51 times)

fnuegbu

  • Hero Member
  • *****
  • Posts: 539
on: Jul 28, 2018
The reason that you would use a ramp to carry a weight to the top of a platform, rather than lifting it up a ladder, is because the
 a. force exerted would be less
  b. work done would be less
  c. power expended would be less
  d. gain in potential energy would be more

Question 2

A particle moves along a circular path having a radius of 2.0 m. At an instant when the speed of the particle is equal to 3.0 m/s and changing at the rate of 5.0 m/s2, what is the magnitude of the total acceleration of the particle?
 a. 7.5 m/s2
  b. 6.0 m/s2
  c. 5.4 m/s2
  d. 6.7 m/s2
  e. 4.5 m/s2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

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

a

Answer to Question 2

D


fnuegbu

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 28, 2018
Thanks


macmac

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Orangutan males are twice the size and weight of females. Orangutan males are twice the size and weight of females.
Measuring Adult Weight and Height Measuring Adult Weight and Height
Skin lifting. Superficial tissues are picked up and gently pulled away from deeper tissues. Skin lifting. Superficial tissues are picked up and gently pulled away from deeper tissues.
Reptiles (lizards, snakes, and turtles) often carry Salmonella Reptiles (lizards, snakes, and turtles) often carry Salmonella
Wave-Cut Platform and Marine Terrace Wave-Cut Platform and Marine Terrace
Give the world a reason to remember your name Give the world a reason to remember your name
Video: Energy sources - types

For a complete list of videos, visit our video library