Author Question: The length of a telescope is 2.20 m and the focal length of the eyepiece is 1.9 cm. What is the ... (Read 119 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
The length of a telescope is 2.20 m and the focal length of the eyepiece is 1.9 cm. What is the focal length of the objective lens?
 
  A) 41 cm
  B) 45 cm
  C) 111 cm
  D) 218 cm
  E) 16 cm

Question 2

A circuit contains a 2.0-M resistor in series with an uncharged capacitor. When this combination is connected across an ideal battery,
 
  the capacitor reaches 25 of its maximum charge in 1.5 s. What is its capacitance?


amynguyen1221

  • Sr. Member
  • ****
  • Posts: 355
Answer to Question 1

D

Answer to Question 2

2.6 F



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?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

For a complete list of videos, visit our video library