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 122 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
Gracias!

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Female reproductive structure and function in humans. Female reproductive structure and function in humans.
The lymphatic system in humans. The lymphatic system in humans.
This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years
The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h
Literacy Development in the Early Years: Helping Children Read and Write Literacy Development in the Early Years: Helping Children Read and Write
Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ... Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ...
Video: Febrile Seizure

For a complete list of videos, visit our video library