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

Author Question: A ball rolls across a floor with an acceleration of 0.10 m/s2 in a direction opposite to its ... (Read 8 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
A ball rolls across a floor with an acceleration of 0.10 m/s2 in a direction opposite to its velocity. The ball has a velocity of 4.00 m/s after rolling a distance 6.00 m across the floor. What was the initial speed of the ball?
 
  A)
 
  4.15 m/s
 
  B)
 
  5.85 m/s
 
  C)
 
  4.60 m/s
 
  D)
 
  5.21 m/s
 
  E)
 
  3.85 m/s

Question 2

What is the radius of the smallest electron orbit in a singly-ionized helium atom?
 
  A) 1.06  10-10 m B) 1.32  10-11 m C) 5.29  10-11 m D) 2.65  10-11 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sierray

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


jparksx

  • Hero Member
  • *****
  • Posts: 570
Reply #2 on: Jul 29, 2018
Thank you!


Sierray

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Direction of Movement of Extraocular Muscles Direction of Movement of Extraocular Muscles
Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor
Reversible phosphorylation and direction of mRNP nuclear export Reversible phosphorylation and direction of mRNP nuclear export
Add movement to skin lifting by gently pulling it in a certain direction (e.g., up and forward) to ... Add movement to skin lifting by gently pulling it in a certain direction (e.g., up and forward) to ...
Find the magnitude and the direction of the resultant vector of the vectors below. Find the magnitude and the direction of the resultant vector of the vectors below.
Allyl isothiocyanate, ball and stick model Allyl isothiocyanate, ball and stick model
Video: Rh blood type and complications during pregnancy & Fertilization

For a complete list of videos, visit our video library