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 226 times)

bb

  • Hero Member
  • *****
  • Posts: 544
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
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
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

For a complete list of videos, visit our video library