This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Thousands of years ago, after humans began settling in villages, their settlements were energized by ... (Read 79 times)

joesmith1212

  • Hero Member
  • *****
  • Posts: 549
on: Jul 29, 2018
Thousands of years ago, after humans began settling in villages, their settlements were energized by
 
  A) gravitational energy.
  B) thermal energy.
  C) nuclear energy.
  D) chemical energy.
  E) radiant energy.

Question 2

Enzo throws a rock horizontally with a speed of 12 m/s from a bridge. It falls for 2.28 s before reaching the water below. Ignore air. Just as the rock reaches the water, find (a) the horizontal component of its velocity.
 
  (b) the speed with which it is moving.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

(a) 12 m/s (b) 25 m/s


joesmith1212

  • Member
  • Posts: 549
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Defibrillator. Defibrillators are devices that supply a voltage charge to the heart in the hope of r Defibrillator. Defibrillators are devices that supply a voltage charge to the heart in the hope of r
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
Poverty rates have declined in the last 50 years, and the biggest decline has been for people 65 and ... Poverty rates have declined in the last 50 years, and the biggest decline has been for people 65 and ...
Siri plans to retire in 18 years and would like to receive $10 000.00 per month for twenty ... Siri plans to retire in 18 years and would like to receive $10 000.00 per month for twenty ...
Earth 600 Million Years Ago Earth 600 Million Years Ago
Earth 200 Million Years Ago Earth 200 Million Years Ago
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library