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

Author Question: When an inflated balloon is released with its end unsealed and takes off across the room, how is ... (Read 57 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
When an inflated balloon is released with its end unsealed and takes off across the room, how is momentum conserved?
 a. Momentum is conserved because the balloon is displacing atmosphere molecules from the air around it.
  b. Momentum is conserved because the balloon is getting smaller.
  c. Momentum is conserved because the balloon is getting larger.
  d. Momentum is conserved because the air molecules inside the balloon are moving out in the opposite direction from the balloon's movement.
  e. Momentum is conserved because the air from the balloon pushes the air behind it.

Question 2

In this photo, a fire extinguisher provides the impulse for a hallway rocket cart. Which is NOT true about the motion of the rocket cart and person?
 a. The momentum of the cart and person is equal in magnitude and opposite in direction to the momentum of the expelled gas.
  b. The cart and person are propelled as a result of gas from the fire extinguisher pushing against air in the room.
  c. The force of the gas on the cart and person is equal and opposite to the force of the person and cart on the expelled gas.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

batool

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

b


EAugust

  • Member
  • Posts: 550
Reply 2 on: Jul 28, 2018
Excellent

softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Bill Viola, Room for St. John of the Cross. Bill Viola, Room for St. John of the Cross.
A patient examination room should be simple and efficiently designed. A patient examination room should be simple and efficiently designed.
Balloon angioplasty is used to open coronary vessels. Balloon angioplasty is used to open coronary vessels.
A ring link network reduces the number of wires it takes to interconnect all of the modules. A ring link network reduces the number of wires it takes to interconnect all of the modules.
a) Preformed mediators released by mast cells and their actions. (b) Newly synthesized mediators ... a) Preformed mediators released by mast cells and their actions. (b) Newly synthesized mediators ...
Reconstruction Drawing of the Megaron (Great Room) of the Pylos Palace Reconstruction Drawing of the Megaron (Great Room) of the Pylos Palace
Video: Origin of organelles Animation

For a complete list of videos, visit our video library