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
jek_recluse [69]
2 years ago
12

What is the change in weight of a hollow cylinder of height 8 cm and radius 3 cm when the air is pumped out of it

Physics
1 answer:
Trava [24]2 years ago
8 0

This question involves the concepts of density, weight, and volume.

The change in weight of the cylinder will be "2.72 x 10⁻³ N".

The change in weight of the cylinder will be equal to the weight of the air inside the cylinder which is being removed from it:

\Delta W = W_a

where,

  • \Delta W = change in weight of cylinder = ?
  • W_a = Weight of air inside cylinder = \rho Vg
  • \rho = density of air = 1.225 kg/m³
  • V = Volume of air inside the cylinder = πr²h = π(0.03 m)²(0.08 m) = 2.26 x 10⁻⁴ m³
  • g = acceleration due to gravity = 9.81 m/s²

Therefore,

\Delta W = W_a = \rho Vg\\\\\Delta W = (1.225\ kg/m^3)(2.26\ x\ 10^{-4}\ m^3)(9.81\ m/s^2)

<u>ΔW = 2.72 x 10⁻³ N</u>

Learn more about density here:

brainly.com/question/952755

You might be interested in
An incandescent light bulb produces light when electrons flow through the
azamat
<span>Electric current passes through a filament of an incandescent bulb, thereby increasing it temperature. When current flows, it contains electrons through the filament to produce light. The answer is c. Typically, incandescent light bulb consists of a glass enclosure that contains tungsten filament. The glass enclosure contains either a vacuum or an inert gas that serves as the filament protection from evaporating. Incandescent light bulbs contain a stem attached at to its base to allow the electrical contacts to run through the envelope without gas or air leaks</span>
7 0
3 years ago
Read 2 more answers
Describe the trip from your home to school using the words position, distance, displacement, and
ozzi

Answer:

The position of my house is a little uphill as compared to the position of my school. The distance I have to travel from my house to school is nearly 2 kilometers. The displacement is in the 2000 m towards the left from my house. The speed of the bus which I usually take is 40 km/ hour.

6 0
3 years ago
If the ratio between the frequency of a man's voice and that of a girl's voice is 3/4, what
shepuryov [24]

Answer:

it is 34

34 is th answer

Explanation:

8 0
3 years ago
The weight of an object is the force generated by Earth's gravity accelerating the object's _________. distance mass time destin
julsineya [31]
The weight of an object is the force of gravity between Earth's
mass and the object's mass.

The forces of gravity always come in equal, opposite pairs. 
The Earth's weight on the object is the same as the object's
weight on the Earth, and when the object falls to Earth, Earth
falls to the object.
4 0
3 years ago
E) the time it takes the car to reach 20.0ms-1​
Galina-37 [17]
4.2 thats the answer
8 0
2 years ago
Other questions:
  • What total distance will a sound wave travel in air in 3.00 seconds at stp?
    14·1 answer
  • You just found a metallic object in a creek bed. you have found its mass to be 96.5 g, and it displaces 5mL of water. what is th
    13·2 answers
  • Gerald works on a futuristic space station servicing interstellar space ships. He observes a ship traveling directly away from t
    10·1 answer
  • A cylinder with a movable piston contains a sample of ideal gas. A temperature probe and a pressure probe are inserted into the
    14·1 answer
  • How are the wavelengths of light emitted?
    9·1 answer
  • The astronomer Kepler develop the three laws a planetary motion what is meant by the love distance. Relationship
    8·1 answer
  • How does weathering produce soil
    7·1 answer
  • The picture to the right shows which wave behavior?
    15·2 answers
  • An object with mass of 4kg is thrown with initial velocity of 20m/s from point A and follows the track of ABCD.
    10·1 answer
  • Find the kenetic energy of a car of mass 700kg racing with a velocity of 10m/s
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!