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
Shtirlitz [24]
3 years ago
12

The moment of inertia for a 5500 kg solid disc is 12100 kg-m^2. Find the radius of the disc? (a) 2.111 m (b) 2.579 m (c) 1.679

m (d) 2.574 m (e) 2.098 m (f) 2.457 m
Physics
1 answer:
Soloha48 [4]3 years ago
8 0

Answer:

The radius of the disc is 2.098 m.

(e) is correct option.

Explanation:

Given that,

Moment of inertia I = 12100 kg-m²

Mass of disc m = 5500 kg

Moment of inertia :

The moment of inertia is equal to the product of the mass and square of the radius.

The moment of inertia of the disc is given by

I=\dfrac{mr^2}{2}

Where, m = mass of disc

r = radius of the disc

Put the value into the formula

12100=\dfrac{5500\times r^2}{2}

r=\sqrt{\dfrac{12100\times2}{5500}}

r= 2.098\ m

Hence, The radius of the disc is 2.098 m.

You might be interested in
If you let him have Czechoslovakia, he is going to.​
valentinak56 [21]

I - ok. Czechoslovakia is officially taken.

4 0
2 years ago
Kenya has a pile of salt on the counter. She uses a pinch of it for a meal. Which of the following physical properties of the sa
SashulF [63]
C. I learned about this last year
4 0
3 years ago
Read 2 more answers
What is the frequency of this wave?
Anastasy [175]
In telecommunication systems, Carrier frequency is a technical term used to indicate: ... The frequency of the unmodulated electromagnetic wave at the output of a conventional amplitude-modulated (AM-unsupressed carrier), or frequency-modulated (FM), or phase-modulated (PM) radio transmitter.
6 0
3 years ago
Read 2 more answers
A flat coil of wire consisting of 15 turns, each with an area of 40 cm 2, is positioned perpendicularly to a uniform magnetic fi
zheka24 [161]

Answer:

0.54 A

Explanation:

Parameters given:

Number of turns, N = 15

Area of coil, A = 40 cm² = 0.004 m²

Change in magnetic field, ΔB = 5.1 - 1.5 = 3.6 T

Time interval, Δt = 2 secs

Resistance of the coil, R = 0.2 ohms

To get the magnitude of the current, we have to first find the magnitude of the EMF induced in the coil:

|V| = |(-N * ΔB * A) /Δt)

|V| = | (-15 * 3.6 * 0.004) / 2 |

|V| = 0.108 V

According to Ohm's law:

|V| = |I| * R

|I| = |V| / R

|I| = 0.108 / 0.2

|I| = 0.54 A

The magnitude of the current in the coil of wire is 0.54 A

6 0
3 years ago
Which metal in Period 5 is very reactive and has two valence electrons in each atom?
iren2701 [21]
The answer is Strontium(Sr)
8 0
3 years ago
Other questions:
  • Calculate the amount of energy produced in a nuclear reaction in which the mass defect is 0.187456 amu.
    13·2 answers
  • You have a remote-controlled car that has been programmed to have velocity v⃗ =(−3ti^+2t2j^)m/s, where t is in s. At t = 0 s, th
    5·1 answer
  • The shape of the earth is an _______ ________
    6·1 answer
  • In what direction would you head from New York state to find warmer temperatures
    5·1 answer
  • if the net force of an object is in a positive direction what will the direction of the resulting acceleration be
    9·1 answer
  • Lucas plugs a lamp into the wall. The light bulb in the lamp turns on. What kind of energy transformation is this
    10·2 answers
  • What happens when a star exhausts its core hydrogen supply?
    11·1 answer
  • Calculate the speed of the object from 5 seconds to 10 seconds. Show your work and don't forget to include the units. (HINT for
    14·1 answer
  • A flat (unbanked) curve on a highway has a radius of 220.0 m. A car rounds the curve at a speed of 25.0 m/s.
    11·1 answer
  • What can cause electricity to jump across a gap
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!