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

Author Question: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ... (Read 169 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
on: Jul 29, 2018
A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming negligible air resistance?
 
  A) 20 m
  B) 30 m
  C) 50 m
  D) 70 m

Question 2

A hoop with a mass of 2.75 kg is rolling without slipping along a horizontal surface with a speed of 4.5 m/s when it starts down a ramp that makes an angle of 25 below the horizontal.
 
  What is the rotational kinetic energy of the hoop after it has rolled 3.0 m down as measured along the surface of the ramp? A) 34 J
  B) 22 J
  C) 45 J
  D) 62 J
  E) This question cannot be answered without knowing the radius of the hoop.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ririgirl15

  • Sr. Member
  • ****
  • Posts: 385
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


captainjonesify

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


ririgirl15

  • Sr. Member
  • ****
  • Posts: 385
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Pronation and Supination Pronation–Lying prone (face downward); also turning the palm downward. Supi Pronation and Supination Pronation–Lying prone (face downward); also turning the palm downward. Supi
Frank Gehry and Vlado Milunić, Rasin Building (a.k.a. the "Dancing House" or ... Frank Gehry and Vlado Milunić, Rasin Building (a.k.a. the "Dancing House" or ...
J. M. W. Turner, Rain, Steam, and Speed—The Great Western Railway. J. M. W. Turner, Rain, Steam, and Speed—The Great Western Railway.
A typical ball-peen hammer. A typical ball-peen hammer.
A batter hits a home run in which the ball travels 110 m horizontally with no appreciable ... A batter hits a home run in which the ball travels 110 m horizontally with no appreciable ...
Allyl isothiocyanate, ball and stick model Allyl isothiocyanate, ball and stick model
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

For a complete list of videos, visit our video library