Author Question: The safest category of electric meters is: A) Category I. B) Category II. C) Category III. D) ... (Read 89 times)

tnt_battle

  • Hero Member
  • *****
  • Posts: 556
The safest category of electric meters is:
 
  A) Category I. B) Category II. C) Category III. D) Category IV.

Question 2

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



yuyiding

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

D

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

For a complete list of videos, visit our video library