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

Author Question: A post-1982 penny is made with zinc, but its density is actually greater than that of zinc because ... (Read 198 times)

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
on: Aug 27, 2018
A post-1982 penny is made with zinc, but its density is actually greater than that of zinc because ________.
 
  A) it is coated with a thin layer of copper, which is more dense than zinc
  B) it is compressed to a smaller volume in the manufacturing process
  C) it has more mass for the same volume
  D) Both A and C are correct

Question 2

Which of the following is not one of the main classes of psychoactive drugs?
 
  A) narcotics
  B) stimulants
  C) depressants
  D) hallucinogens
  E) All of the above are classes of psychoactive drugs.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

hollysheppard095

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

A


RYAN BANYAN

  • Member
  • Posts: 563
Reply 2 on: Aug 27, 2018
Excellent

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Walrus tusk engraving made by Chukchi artisans depicting polar bears attacking walruses. On display Walrus tusk engraving made by Chukchi artisans depicting polar bears attacking walruses. On display
The spongy bone in the top of the femur changes density and organization during growth. The spongy bone in the top of the femur changes density and organization during growth.
An experimentally made Oldowan type core. An experimentally made Oldowan type core.
The post-catalytic converter oxygen sensor should display very little activity if the catalytic ... The post-catalytic converter oxygen sensor should display very little activity if the catalytic ...
Pneumonia patient’s chest x-ray. Note the irregular areas of density. Pneumonia patient’s chest x-ray. Note the irregular areas of density.
Zinc-finger nucleases and TALENs bind and cut DNA at specific sequences Zinc-finger nucleases and TALENs bind and cut DNA at specific sequences
Video: Structures that affect circulation - arterioles and vasomotor responses

For a complete list of videos, visit our video library