« previous next »

Author Question: What is the value of n in the Balmer series for which the wavelength is 410.2 nm. A) 4 B) 5 C) ... (Read 268 times)

bb

  • Hero Member
  • *****
  • Posts: 544
on: Jul 29, 2018
What is the value of n in the Balmer series for which the wavelength is 410.2 nm.
 
  A) 4
  B) 5
  C) 6
  D) 7
  E) 9

Question 2

A uniform solid sphere of mass 1.5 kg and diameter 30.0 cm starts from rest and rolls without slipping down a 35 incline that is 7.0 m long.
 
  (a) Calculate the linear speed of the center of the sphere when it reaches the bottom of the incline.
  (b) Determine the angular speed of the sphere about its center at the bottom of the incline.
  (c) Through what angle (in radians) does this sphere turn as it rolls down the incline?
  (d) Does the linear speed in (a) depend on the radius or mass of the sphere? Does the angular speed in (b) depend on the radius or mass of the sphere?


Joc

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

(a) 7.5 m/s (b) 50 rad/s (c) 47 rad
(d) The linear speed depends on neither the radius nor the mass of the sphere. The angular speed depends on the radius of the sphere.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Stereo Image taken by NASA STEREO Probes launched in 2006; utilizing two Spacecrafts to image the Su Stereo Image taken by NASA STEREO Probes launched in 2006; utilizing two Spacecrafts to image the Su
Pat Steir, The Brueghel Series: A Vanitas of Style. Pat Steir, The Brueghel Series: A Vanitas of Style.
Laylah Ali, Untitled, from the series Greenheads. Laylah Ali, Untitled, from the series Greenheads.
Jacob Lawrence, You can buy bootleg whiskey for twenty-five cents a quart, from the Harlem Series. Jacob Lawrence, You can buy bootleg whiskey for twenty-five cents a quart, from the Harlem Series.
Edmund Clark. Camp Five, Detainee's Cell, from the series Guantanamo: If the Light Goes Out, ... Edmund Clark. Camp Five, Detainee's Cell, from the series Guantanamo: If the Light Goes Out, ...
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Video: Introduction to Herpes

For a complete list of videos, visit our video library