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 37 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?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

A Gaze-Direction Cell A Gaze-Direction Cell
Reversible phosphorylation and direction of mRNP nuclear export Reversible phosphorylation and direction of mRNP nuclear export
Apply fascial mobilization in one direction using a palm. Stand to the side of the face cradle; ... Apply fascial mobilization in one direction using a palm. Stand to the side of the face cradle; ...
Turn baby over, placing him or her sideways across your legs if on floor or across pillow. Turn baby over, placing him or her sideways across your legs if on floor or across pillow.
Mapping the Ocean Floor Mapping the Ocean Floor
Primary Type of Floor Framing Primary Type of Floor Framing
Video: Types of disease resistance: innate defenses & immunity

For a complete list of videos, visit our video library