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

Author Question: A ball vibrates back and forth from the free end of an ideal spring having a force constant (spring ... (Read 66 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 29, 2018
A ball vibrates back and forth from the free end of an ideal spring having a force constant (spring constant) of 20 N/m. If the amplitude of this motion is 0.30 m,
 
  what is the kinetic energy of the ball when it is 0.30 m from its equilibrium position?
  A) 0.00 J
  B) 0.22 J
  C) 0.45 J
  D) 0.90 J
  E) 1.4 J

Question 2

What is the charge on 1.0 kg of protons? (e = 1.60  10-19 C, mproton = 1.67  10-27 kg)
 
  A) 1.0 C
  B) 1000 C
  C) 9.6  107 C
  D) 6.0  1026 C
  E) 6.0  1023 C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cascooper22

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


Mimi

  • Member
  • Posts: 542
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Magnetic resonance imaging (MRI) image demonstrating a back herniated disk. Magnetic resonance imaging (MRI) image demonstrating a back herniated disk.
13 Ball 13 Ball
This is the first portrait of George Washington, painted by John Gadsby Chapman. Washington’s right This is the first portrait of George Washington, painted by John Gadsby Chapman. Washington’s right
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
L. Frank Baum, author of The Wonderful Wizard of Oz (1900) and a fan of William Jennings Bryan, perh L. Frank Baum, author of The Wonderful Wizard of Oz (1900) and a fan of William Jennings Bryan, perh
Converting the universal gas constant Converting the universal gas constant
Video: Michaelis–Menten equation & Kinetic parameters

For a complete list of videos, visit our video library