Author Question: A plant that is 4.0 cm tall is placed 15 cm from a concave spherical mirror having a focal length of ... (Read 22 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
A plant that is 4.0 cm tall is placed 15 cm from a concave spherical mirror having a focal length of magnitude 20 cm. Where is the image located?
 
  A) 60 cm in front of the mirror B) 60 cm behind the mirror
  C) 12 cm behind the mirror D) 12 cm in front of the mirror

Question 2

A flat coil is wrapped with 200 turns of very thin wire on a square frame with sides 18 cm long. A uniform magnetic field is applied perpendicular to the plane of the coil.
 
  If the field changes uniformly from 0.50 T to 0.00 T in 8.0 s, find the emf induced in the coil.
  A) 2.1 mV B) 0.41 V C) 4.1 mV D) 0.21 V



huda

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

For a complete list of videos, visit our video library