« previous next »

Author Question: A diver can change her rate of rotation in the air by tucking her head in and bending her knees. ... (Read 53 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
on: Jul 27, 2018
A diver can change her rate of rotation in the air by tucking her head in and bending her knees. Let's assume that when she is stretched out straight she is rotating at 1 revolution per second.
 
  Now she goes into the tuck and bend, effectively shortening the length of her body by half. What will her rate of rotation be now?

Question 2

The wavelength of a certain portion of microwaves is 40 mm. What is its frequency?
 
  A) 40 GHz
  B) 4.0 GHz
  C) 0.75 GHz
  D) 75 GHz
  E) 7.5 GHz


marict

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 27, 2018
Answer to Question 1

4 Hz

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Nucleosome head on Nucleosome head on
Situations Causing Changes in Respiratory Rate Situations Causing Changes in Respiratory Rate
a) Avoid bending your spine from working with the table too low. b) Avoid hiking your shoulders from ... a) Avoid bending your spine from working with the table too low. b) Avoid hiking your shoulders from ...
Cradle the head briefly in both hands to end this section. Cradle the head briefly in both hands to end this section.
Standing at the head of the table, apply effleurage to upper trapezius from neck to shoulder using a ... Standing at the head of the table, apply effleurage to upper trapezius from neck to shoulder using a ...
Turn head for access to posterior cervical muscles. Locate TrPs along posterior cervical muscles, ... Turn head for access to posterior cervical muscles. Locate TrPs along posterior cervical muscles, ...
Video: Blood Test Basics

For a complete list of videos, visit our video library