Author Question: If a pendulum makes 12 complete swings in 8.0 s, what are its (a) frequency and (b) period? What ... (Read 93 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
If a pendulum makes 12 complete swings in 8.0 s, what are its (a) frequency and (b) period?
 
  What will be an ideal response?

Question 2

A sewing machine needle moves in simple harmonic motion with a frequency of 2.5 Hz and an amplitude of 1.27 cm.
 
  (a) How long does it take the tip of the needle to move from the highest point to the lowest point in its travel? (b) How long does it take the needle tip to travel a total distance of 11.43 cm?



Carissamariew

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

(a) 1.5 Hz (b) 0.67 s

Answer to Question 2

(a) 0.20 s (b) 0.90 s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

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

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

For a complete list of videos, visit our video library