1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11111nata11111 [884]
3 years ago
12

One way to force air into an unconscious person's lungs is to squeeze on a balloon appropriately connected to the subject. What

force must you exert on the balloon with your hands to create a gauge pressure of 4.00 cm water, assuming you squeeze on an effective area of 50.0 cm^2 ?
Physics
1 answer:
frozen [14]3 years ago
3 0

Answer:

The force that you must exert on the balloon is 1.96 N

Explanation:

Given;

height of water, h = 4.00 cm = 4 x 10⁻² m

effective area, A = 50.0 cm² = 50 x 10⁻⁴ m²

density of water, ρ = 1 x 10³ kg/m³

Gauge pressure of the balloon is calculated as;

P = ρgh

where;

ρ is density of water

g is acceleration due to gravity

h is height of water

P = 1 x 10³ x 9.8 x 4 x 10⁻²

P = 392 N/m²

The force exerted on the balloon is calculated as;

F = PA

where;

P is pressure of the balloon

A is the effective area

F = 392 x 50 x 10⁻⁴

F = 1.96 N

Therefore, the force that you must exert on the balloon is 1.96 N

You might be interested in
Why do we dream? hurry plz
Vinil7 [7]
I believe that we dream because we have memories of what have happened or what we have seen in the day
3 0
3 years ago
Read 2 more answers
The resultant of two vectors is maximum, when angle between them is:
dexar [7]
When angle between them is zero
7 0
3 years ago
If ice has a density of.92g/cm, what is the volume of 1.8 kilograms of ice?
steposvetlana [31]
Given:
Density = .92 g / cm³
Volume = 1.8 kg
            = (1.8 * 1000) grams
            = 1800 grams
Now,
Density (d) = \frac{Mass (m)}{volume(v)}

volume (v)= \frac{mass(m)}{density(d)}

volume (v)= \frac{1800}{.92}

volume (v)= 1956.521739

volume (v)= 1956.5~ cm^{3}

So, the volume of 1.8 kg of ice is 1956.5 cm³

5 0
3 years ago
What is the wavelength of an earthquake wave if it has a speed of 12 km/s and a frequency of 15 Hz
professor190 [17]
First change km/ s into m/s, then use the formula
Lambda = velocity/ frequency
3 0
3 years ago
In avarage,How many times do a child breathe in a
ollegr [7]
On an approximate scale, A child breaths 20 times a minute as compared to only 12 to 16 in resting phase of an Adult.

So, In 60 minutes (1 hour), They breathe = 20 * 60 = 1200
In 24 hours (1 day), They breathe = 1200 * 24 = 28,800

In short, Your Answer would be: 28,800

Hope this helps!
5 0
3 years ago
Read 2 more answers
Other questions:
  • A block of mass m slides with a speed vo on a frictionless surface and collides with another mass M which is initially at rest.
    11·1 answer
  • Consider the uniform electric field \vec{E} =(4.00~\hat{j}+3.00~\hat{k})\times 10^3~\text{N/C} ​E ​⃗ ​​ =(4.00 ​j ​^ ​​ +3.00 ​k
    11·1 answer
  • Thermodynamic Properties: Two identical, sealed, and well-insulated jars contain different gases at the same temperature. Each c
    12·1 answer
  • What force accelerates a 500 kg object at 5 m/s2?
    9·2 answers
  • block of mass m sits at rest on a rough inclined ramp that makes an angle with the horizontal. What must be true about normal fo
    9·1 answer
  • 1-10 are True or False (This is Environmental Science not physics)
    9·1 answer
  • What do geologists use to find absolute rock and fossil ages
    14·2 answers
  • An object accelerates from rest, with a constant acceleration of 14.5 m / s, what will its velocity be after 92 s?
    10·1 answer
  • Which of the following are true about electrons? a.) They are positively charged b.) They are negatively charged c.) They are fo
    13·2 answers
  • The form of energy stored in food is known as
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!