« previous next »

Author Question: Which of the following is a unit of energy: a. watt b. ftlb/sec c. newton/sec. d. horsepower e. ... (Read 69 times)

krzymel

  • Hero Member
  • *****
  • Posts: 548
on: Jul 28, 2018
Which of the following is a unit of energy:
 a. watt b. ftlb/sec c. newton/sec. d. horsepower e. joule

Question 2

The initial speed of a cannon ball is 0.20 km/s. If the ball is to strike a target that is at a horizontal distance of 3.0 km from the cannon, what is the minimum time of flight for the ball?
 a. 16 s
  b. 21 s
  c. 24 s
  d. 14 s
  e. 19 s


strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

e

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

krzymel

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Cell Energy Cell Energy
Energy of reactant molecules. Energy of reactant molecules.
Metabolic pathways involved in the breakdown of proteins for energy. Metabolic pathways involved in the breakdown of proteins for energy.
30-Unit Insulin Syringe 30-Unit Insulin Syringe
Energy Transfer Energy Transfer
The flow of energy and the cycling of materials maintain nature’s organization The flow of energy and the cycling of materials maintain nature’s organization
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library