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 64 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?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

(a) Longevity decreases with increased horn-length breeding value of harvested rams. (b) Mean-weight (a) Longevity decreases with increased horn-length breeding value of harvested rams. (b) Mean-weight
Assessing Height & Weight Assessing Height & Weight
The birth weight of human infants is tightly constrained by natural selection. The birth weight of human infants is tightly constrained by natural selection.
Localized Convective Lifting Localized Convective Lifting
Maintaining Weight Loss Maintaining Weight Loss
A solution is 2.25% by weight KHCO3. How many grams of KHCO3 are in 150.0 g of solution? A solution is 2.25% by weight KHCO3. How many grams of KHCO3 are in 150.0 g of solution?
Video: Vasectomy

For a complete list of videos, visit our video library