« previous next »

Author Question: The current through a piece of lab equipment must be limited to 2.75 A when it is run by a 120-V dc ... (Read 50 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
The current through a piece of lab equipment must be limited to 2.75 A when it is run by a 120-V dc power supply. What must be the resistance of this equipment?
 
  What will be an ideal response?

Question 2

Which of the following statements about electromagnetic waves in free space are true? (There could be more than one correct choice.)
 
  A) The higher-frequency waves have shorter wavelengths than the lower-frequency waves.
  B) The higher-frequency travel faster than the lower-frequency waves.
  C) The wavelengths of the visible waves are some of the longest electromagnetic waves.
  D) The wavelengths of the visible waves are some of the shortest electromagnetic waves.
  E) The electric field vector is always at right angles to the magnetic field vector.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


spencer.martell

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 29, 2018
Answer to Question 1

43.6

Answer to Question 2

A, E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

A young Lipizzan at the Spanish Riding School in training equipment, wearing saddle, bridle and long A young Lipizzan at the Spanish Riding School in training equipment, wearing saddle, bridle and long
Wearing safety equipment is essential at all ages Wearing safety equipment is essential at all ages
Sample Exercise Program for Limited Older Adults (cont.) Sample Exercise Program for Limited Older Adults (cont.)
Demonstrating the use of venipuncture equipment. Using a syringe to draw blood. Demonstrating the use of venipuncture equipment. Using a syringe to draw blood.
Current Geopolitical Framework Current Geopolitical Framework
Chilling Effect of a Cold Current Chilling Effect of a Cold Current
Video: Structures that affect circulation - kidneys, blood volume and venous tone

For a complete list of videos, visit our video library