« previous next »

Author Question: A waterfall is an example of: A) Kinetic energy. B) Cold fusion. C) Perpetual energy. D) ... (Read 73 times)

123654777

  • Hero Member
  • *****
  • Posts: 585
on: Jul 24, 2018
A waterfall is an example of:
 
  A) Kinetic energy. B) Cold fusion. C) Perpetual energy. D) Potential energy.

Question 2

A technician pushes a 50-lb box 4 feet in 2 seconds. The work done is:
 
  A) 200 ft-lb/2 s = 100 ft-lb/s. B) 50 lb  4 ft = 200 ft-lb.
  C) 50 lb. D) 4 ft-lb.


blazinlyss

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Role of binding energy in catalysis Role of binding energy in catalysis
Shifts between Warm and Cold Periods during the Last 3 Million Years Shifts between Warm and Cold Periods during the Last 3 Million Years
Free energy diagrams for the simple reaction A ----> B Free energy diagrams for the simple reaction A ----> B
Cold Front Cold Front
Energy flow in the light-dependent reactions of photosynthesis Energy flow in the light-dependent reactions of photosynthesis
Energy flows from the environment into living organisms, then back to the environment Energy flows from the environment into living organisms, then back to the environment
Video: Major Elements in Biological Molecules: Proteins

For a complete list of videos, visit our video library