« previous next »

Author Question: The remaining core of a planetary nebula is called a _______________. a. white dwarf b. neutron ... (Read 15 times)

vHAUNG6011

  • Hero Member
  • *****
  • Posts: 514
on: Jul 28, 2018
The remaining core of a planetary nebula is called a _______________.
 a. white dwarf
  b. neutron star
  c. black hole
  d. red giant

Question 2

A doorbell has an input voltage of 120 V. A transformer that steps the voltage down to 12 V has 500 turns on its primary. What is the number of turns on the secondary?


popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

50 turns


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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.

Some Shapes of Planetary Nebulae Some Shapes of Planetary Nebulae
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
One of the cultural privileges of being white in the United States is less suspicion of wrongdoing. One of the cultural privileges of being white in the United States is less suspicion of wrongdoing.
The European Core: Cities The European Core: Cities
White blood cells White blood cells
The 20 CODIS Core Locia The 20 CODIS Core Locia
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

For a complete list of videos, visit our video library