This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The electric fields arriving at a point P from three coherent sources are described by E1 = E0 sin ... (Read 45 times)

Frost2351

  • Hero Member
  • *****
  • Posts: 557
on: Jul 28, 2018
The electric fields arriving at a point P from three coherent sources are described by E1 = E0 sin t, E2 = E0 sin (t + /4) and E3 = E0 sin (t + /2). Assume the resultant field is represented by Ep = ER sin (t + ). The amplitude of the resultant wave at P is
 a. E0.
  b. 1.5E0.
  c. 1.7E0.
  d. 2.4E0.
  e. 2.9E0.

Question 2

The tail of a comet is shortest when the comet is
 a. closest to the Sun.
  b. farthest from the Sun.
  c. closest to Earth.
  d. farthest from Earth.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

b


Frost2351

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Jul 28, 2018
TY


T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Engine and electric motor for the Toyota Prius Engine and electric motor for the Toyota Prius
Electric Eel Electric Eel
Sonia Delaunay, Prismes Electriques (Electric Prisms). Sonia Delaunay, Prismes Electriques (Electric Prisms).
Four-point gait. Four-point gait.
Basbaum and Fields’s (1978) model of the descending analgesia circuit. Basbaum and Fields’s (1978) model of the descending analgesia circuit.
Sources of acid deposition Sources of acid deposition
Video: Structures that affect circulation - kidneys and blood volume and skeletal muscle pumping

For a complete list of videos, visit our video library