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
Gre4nikov [31]
3 years ago
5

A density triangle is a tool that can be used to find

Physics
1 answer:
Anna [14]3 years ago
4 0
The answer is D
Hope this helps
You might be interested in
Describe how all the air in the oven becomes hot?
vladimir1956 [14]
I think through convection I forget. Plus its enclosed (and, well closed)
4 0
3 years ago
When the cylinder is displaced slightly along its vertical axis it will oscillate about its equilibrium position with a frequenc
Nesterboy [21]

Answer:

w = √[g /L (½ r²/L2 + 2/3 ) ]

When the mass of the cylinder changes if its external dimensions do not change the angular velocity DOES NOT CHANGE

Explanation:

We can simulate this system as a physical pendulum, which is a pendulum with a distributed mass, in this case the angular velocity is

          w² = mg d / I

In this case, the distance d to the pivot point of half the length (L) of the cylinder, which we consider long and narrow

         d = L / 2

The moment of inertia of a cylinder with respect to an axis at the end we can use the parallel axes theorem, it is approximately equal to that of a long bar plus the moment of inertia of the center of mass of the cylinder, this is tabulated

        I = ¼ m r2 + ⅓ m L2

        I = m (¼ r2 + ⅓ L2)

now let's use the concept of density to calculate the mass of the system

        ρ = m / V

        m = ρ V

the volume of a cylinder is

         V = π r² L

          m =  ρ π r² L

let's substitute

        w² = m g (L / 2) / m (¼ r² + ⅓ L²)

        w² = g L / (½ r² + 2/3 L²)

        L >> r

         w = √[g /L (½ r²/L2 + 2/3 ) ]

When the mass of the cylinder changes if its external dimensions do not change the angular velocity DOES NOT CHANGE

4 0
3 years ago
How long does it take light from the sun to reach earth?
storchak [24]
It takes approximately 8 minutes and 20 seconds.
5 0
3 years ago
Read 2 more answers
Help me with my physics, please
Readme [11.4K]
The right answer would be

-20t+ 80
7 0
2 years ago
Give a example of scalar quantity
Serhud [2]

speed, volume, mass, temperature and power

7 0
3 years ago
Read 2 more answers
Other questions:
  • A skier with a 65kg mass skies down a 30 degree incline hill. The coefficient of friction is 0.1. a. Draw a free body diagram. b
    11·1 answer
  • A bus accelerates at -0.5 m/s2 for 12.5 seconds . If the bus had an initial speed of 31 m/s, what is its new speed? A. 12.25m/s
    12·1 answer
  • Why is a biome an open system?
    12·1 answer
  • Okay guys I need serious help here plz!!!
    7·1 answer
  • When a beam of light is incident on a surface, it delivers energy to the surface. The intensity of the beam is defined as the en
    8·1 answer
  • Which part of an atom is actively exchanged or shared in a chemical bond?
    11·2 answers
  • Which exoplanet has the most Earth-like orbit?​
    15·1 answer
  • An object attached to an ideal spring oscillates with an angular frequency of 2.81 rad/s. the object has a maximum displacement
    12·1 answer
  • A high pitch always corresponds to
    6·1 answer
  • 15 g of lead (specific heat = 0.128 J/g Celsius) at 120 Degrees Celsius is placed on a glacier of ice at 0 degrees Celsius. How
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!