« previous next »

Author Question: The flow of nutrients through a biotic community is ________. A) cyclic and multidirectional B) ... (Read 30 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
on: Aug 22, 2018
The flow of nutrients through a biotic community is ________.
 
  A) cyclic and multidirectional
  B) cyclic and unidirectional
  C) noncyclic and multidirectional
  D) noncyclic and unidirectional

Question 2

How do centripetal forces and gravitation forces interact to produce the tides?
 
  What will be an ideal response?


elyse44

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Aug 22, 2018
Answer to Question 1

A

Answer to Question 2

The tide-generating forces create two simultaneous bulges: one on the side of Earth directed toward the Moon (the zenith) and the other on the side directed away from the Moon (the nadir). On the side directly facing the Moon, the bulge is created because the provided gravitational force is greater than the required centripetal force. On the side facing away from the Moon, the bulge is created because the required centripetal force is greater than the provided gravitational force. Although the forces are oriented in opposite directions on the two sides of Earth, the resultant forces are equal in magnitude, so the bulges are equal.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Addition of mineral nutrients to the boreal forest can have different effects on different plant spe Addition of mineral nutrients to the boreal forest can have different effects on different plant spe
Common Health Problems in Community-Dwelling Older Adults Common Health Problems in Community-Dwelling Older Adults
Community colleges have opened higher education to millions of students who would not otherwise have ... Community colleges have opened higher education to millions of students who would not otherwise have ...
Coolant flow through the impeller and scroll of a coolant pump for a V-type engine. Coolant flow through the impeller and scroll of a coolant pump for a V-type engine.
El Niño/La Niña reverses flow El Niño/La Niña reverses flow
How skeletal muscle activity encourages blood flow through veins How skeletal muscle activity encourages blood flow through veins
Video: Stomach peristalsis - Movement of Food Through the Small Intestine

For a complete list of videos, visit our video library