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 79 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
:D TYSM

T4T

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Bill Viola, Room for St. John of the Cross. Bill Viola, Room for St. John of the Cross.
Foley catheter: The inflated balloon at the tip of the catheter holds the Foley catheter in place in ... Foley catheter: The inflated balloon at the tip of the catheter holds the Foley catheter in place in ...
Adjusting a valve takes both hands—one to hold the wrench to loosen and tighten the lock nut and ... Adjusting a valve takes both hands—one to hold the wrench to loosen and tighten the lock nut and ...
Subsurface mining takes place in underground tunnels Subsurface mining takes place in underground tunnels
A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ... A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ...
A soccer ball is released from rest at the top of a grassy incline. After 8.6 seconds, the ball ... A soccer ball is released from rest at the top of a grassy incline. After 8.6 seconds, the ball ...
Video: Introduction to Epilepsy

For a complete list of videos, visit our video library