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

Author Question: A sample of helium (He) occupies 44.8 L at STP. What is the mass of the sample? A) 2 g B) ... (Read 394 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
on: Jul 29, 2018
A sample of helium (He) occupies 44.8 L at STP. What is the mass of the sample?
 
  A)
 
  2 g
 
  B)
 
  4 g
 
  C)
 
  6 g
 
  D)
 
  8 g
 
  E)
 
  10 g

Question 2

Two cars collide head-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?
 
  A)
 
  It was always zero.
 
  B)
 
  It was never zero.
  C)
 
  It was not zero, but ended up zero.
 
  D)
 
  none of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

abro1885

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

A


dollx

  • Member
  • Posts: 558
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

isabelt_18

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather. Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather.
Sample Checklist of Opening and Closing Duties Sample Checklist of Opening and Closing Duties
A sample encounter form. A sample encounter form.
A medical assistant holds a specimen container to receive a biopsy sample. A medical assistant holds a specimen container to receive a biopsy sample.
Sample prescriptions of antibiotics for prophylaxis against infective endocarditis. Sample prescriptions of antibiotics for prophylaxis against infective endocarditis.
What is the density of 96 mL of a liquid that has a mass of 90.5 g? What is the density of 96 mL of a liquid that has a mass of 90.5 g?
Video: Action potentials - electrical characteristics and generation

For a complete list of videos, visit our video library