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]
4 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]4 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
What is the third most abundant gas in the atmosphere.
Nataly_w [17]

Answer:

Argon

Explanation:

Argon, an inert gas, is the third most abundant gas in the atmosphere.

7 0
2 years ago
The cube has a mass of 72.9 g. What substance is this cube composed of?
aalyn [17]
I Need More Details.
But here is somthing i found maybe the same.
brainly.com/question/1354966

8 0
4 years ago
The ultraviolet region of the electromagnetic spectrum extends beyond violet in the visible region. Knowing the relationship bet
madreJ [45]
Jekskdkizixizozksjesjsjjsksksms
7 0
3 years ago
Question 3 (1 point)
FrozenT [24]

The force of friction is equal to the pushing force, and the acceleration is zero

Explanation:

In this problem, we are pushing a piano along the floor, in the horizontal direction.

There are 2 forces acting in the horizontal direction on the piano:

  • The applied force, F_a, acting forward
  • The force of friction, F_f, acting backward

Therefore, the net force in the horizontal direction is

\sum F = F_a - F_f

According to Newton's second law, the net force is equal to the product between the piano's mass (m) and its acceleration:

\sum F = ma

Combining the two equations,

F_a - F_f = ma

However, we are also told that the piano moves at constant speed, therefore the acceleration is zero:

a=0

And so,

F_a - F_f = 0\\F_f = F_a

which means that the force of friction is equal to the applied force.

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

3 0
3 years ago
Why does the amount of water that flows in a river change during the year?
Nina [5.8K]
Hey 

in the summer it is because of the meting  of snow 
in the spring it is rain

hope l helped
8 0
4 years ago
Other questions:
  • A scientist notices that an oil slick floating on water when viewed from above has many different rainbow colors reflecting off
    15·1 answer
  • You hear sound when sound waves in the air make tiny (what? ) In your ears vibrate
    7·1 answer
  • A box falls out of a stationary helicopter hovering 135 m above the ground. How long will it take to hit the ground?
    5·1 answer
  • In the formula for magnetic deflection, FM is equal to qvB. Match each symbol in this formula with what it represents.
    9·2 answers
  • Plz! How to solve this question? The answer is B.
    14·1 answer
  • "A toy airplane flies clockwise at a constant speed in a horizontal circle of radius 8.0 meters. The diagram shows the path of t
    8·2 answers
  • Force equals blank times acceleration
    12·2 answers
  • The Sl unit of pressure is the<br> 3
    14·1 answer
  • The car has a mass of 22,000Kg. Calculate the force needed to stop the car.
    7·1 answer
  • How long will it take an object to accelerate from a velocity of 4.8 m/s to a velocity of 15.6 m/s if it is accelerating at a ra
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!