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

Author Question: A spherical hot air balloon of diameter 20. meters just floats (hovers) when the hot air inside has ... (Read 18 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
on: Jul 27, 2018
A spherical hot air balloon of diameter 20. meters just floats (hovers) when the hot air inside has been heated to a density of 1.00 kg/m3.
 
  What is the weight of the balloon and cargo (not including the air inside) if the surrounding air has a density of 1.30 kg/m3?

Question 2

A charged particle moves with a constant speed through a region where a uniform magnetic field is present. If the magnetic field points straight upward, the magnetic force acting on this particle will be maximum when the particle moves
 
  A) upward at an angle of 45 above the horizontal.
  B) straight upward.
  C) straight downward.
  D) horizontally.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jamesnevil303

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

1.2  104 Newtons (weight of 1.3  103 kg)

Answer to Question 2

D


humphriesbr@me.com

  • Member
  • Posts: 550
Reply 2 on: Jul 27, 2018
:D TYSM

nothere

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Inside a Toddler's Brain Inside a Toddler's Brain
Hot Air Balloon Physics Hot Air Balloon Physics
Inside of the Human Immunodeficiency Virus (HIV) Inside of the Human Immunodeficiency Virus (HIV)
Shown is the electronic circuit inside a ceramic disc MAP sensor used on many Chrysler engines. The ... Shown is the electronic circuit inside a ceramic disc MAP sensor used on many Chrysler engines. The ...
A certain car traveling at 34.0 mph skids to a stop in 29 meters from the point where the ... A certain car traveling at 34.0 mph skids to a stop in 29 meters from the point where the ...
Stressed inside car Stressed inside car
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library