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
gavmur [86]
1 year ago
8

greg has a hoop and a solid cylinder, and wants to spin each around its axis of rotation. they have the same mass and radius. wh

ich object has more rotational inertia?
Physics
1 answer:
brilliants [131]1 year ago
6 0

Both moments of inertia solid cylinder and hoop are the same.

We need to know the rotational inertia of a solid cylinder and hoop.

Solid cylinder inertia is given by

I = 1/2 x M x R²

Hoop cylinder inertia is given by

I = 1/2 x M x (R1 + R2)²

where I is a moment of inertia, M is mass, R is the total radius, R1 is central radius and R2 is skin radius.

The total radius can be defined by

R = R1 + R2

hence R² is

R = (R1 + R2)²

Substitute to solid cylinder inertia

I = 1/2 x M x R²

I = 1/2 x M x (R1 + R2)²

Hence, both moments of inertia solid cylinder and hoop are the same.

Find more on moment of inertia at: brainly.com/question/14460640

#SPJ4

You might be interested in
For a projectile launched at an angle, are the forces in the vertical direction balanced or unbalanced?
mart [117]
Unbalanced as long as it is moving up or down. Immediately after being fired the vertical force from the launch will be greater than the force of gravity. for an instant at the the beginning of the projectiles decent the force will actually be balanced and there will be no vertical movement. After that the force of gravity is greater.

tl;dr they are unbalanced 
7 0
3 years ago
Read 2 more answers
Water is called the “universal solvent.” Which statement best explains this description with respect to ionic compounds?
Semmy [17]
I think it is c for the answer
6 0
4 years ago
What is the magnitude of the electric field in a region where the potential is given by the expression V = ax2 + b where a = −50
sweet [91]

Answer:

E = 1000 x

Explanation:

The electric potential and the electric field are related by the formula

        dV = - E . dx

Bold represents vectors.

The point represents the scalar product, in this case we calculate the electric field in the x-axis and the potential is also in this axis so the scalar product is reduced to the algebraic product

        E = dV /dx

Let's make the derivative

        E = - 2ax

Let's replace the values

        E = -2 (-500) x

        E = 1000 x

5 0
3 years ago
Read 2 more answers
Here's an interesting challenge you can give to a friend. Hold a $1 bill by the upper corner. Have a friend prepare to pinch the
grin007 [14]
I would say that it would take her 35 * 2 cashing Bill properly because I multiply 0.25 times 16 which gave me 1.50 + 2.50 equals 3.50
4 0
3 years ago
Read 2 more answers
How do you determine the acceleration of an object?
Gelneren [198K]

Are you familiar with any basic calculus? If so, we can just look at this derivative and see what's happening with our units here..

a = \frac{dv}{dt}

Here it shows that acceleration is the derivative of velocity with respect to time. In other words, we can say that:

a=\frac{\Delta v}{\Delta t}

We can read that equation as: "acceleration is the change of velocity divided by the change in time (aka the time interval)."

If you're not familiar with calculus, we can use a simple equation of motion:

v_f = v_i+at

where:

vf = final velocity

vi = initial velocity

a = acceleration

t = observed time interval

We can rearrange this equation to find:

a = \frac{v_f - v_i}{t}

This is the same exact thing we wrote before!

8 0
3 years ago
Read 2 more answers
Other questions:
  • If you kick a football, why does the reaction force not prevent the ball from moving?
    5·2 answers
  • A 500g object falls off a cliff and losers 100 J from its gravitational potential energy store. if the gravitational field stren
    12·1 answer
  • What propelled the popper into the air
    9·1 answer
  • 3. Elements are organized on the<br><br> according to their
    7·1 answer
  • In order for a person to “ see” and object, light waves pass through the.......
    8·2 answers
  • An electric wall clock has a second hand 15 cm long. at the tip of his hand, what is the magnitude of the velocity?
    12·1 answer
  • Ill mark as brainliest
    15·1 answer
  • I NEED ASAP
    6·2 answers
  • Why is Alternating Current important
    8·2 answers
  • A drag racing vehicle travels from 0 to 100 mph in 5 seconds north. What is the acceleration?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!