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fredd [130]
3 years ago
10

Help plzzzz ............

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

the first is c

Step-by-step explanation:

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Two metal disks, one with radius r = 2. 50 cm and the other with radius r = 5. 00 cm are welded together and
vova2212 [387]

The total moment of inertia of the two disks will be I = 2.375 × 10-³ Kgm² welded together to form one unit.

<h3>What is moment of inertia?</h3>

Moment of inertia is the quantity expressing a body's tendency to resist angular acceleration, which is the sum of the products of the mass of each particle in the body with the square of its distance from the axis of rotation.

Using the formulas to calculate the moment of inertia of a solid cylinder:

I = ½MR²

Where;

I = moment (kgm²)

M = mass of object (Kg)

R = radius of object (m)

Total moment of inertia of the two disks is expressed as: I = I(1) + I(2)

That is;

I = ½M1R1 + ½M2R2

According to the provided information;

R1 = 2.50cm = 0.025m

M1 = 0.800kg

R2 = 5.00cm = 0.05m

M2 = 1.70kg

I = (½ × 0.800 × 0.025²) + (½ × 0.05² × 1.70)

I = (½ × 0.0005) + (½ × 0.00425)

I = (0.00025) + (0.002125)

I = 0.002375

I = 2.375 × 10-³ Kgm²

Hence The total moment of inertia of the two disks will be I = 2.375 × 10-³ Kgm² welded together to form one unit.

To know more about moment of inertia follow

brainly.com/question/14460640

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4 0
1 year ago
Write an equation of the circle with center (-3, 7) and radius 2.
jok3333 [9.3K]

Answer:

(x+3)^2 + (y-7)^2 = 2^2

Step-by-step explanation:

Follow the standard form of a circle, (x-h)^2 + (y-k)^2 = r^2, given that (-3,7) is (h,k) and 2 is r.

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2 years ago
Factor the following expressions
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Answer:

i hope <em>this </em><em>will</em><em> help</em><em> </em>you

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2 years ago
The volume of a cylinder is 40 Feet cubed. Which expression represents the volume of a cone with the same base and height as the
slega [8]

Answer:

Step-by-step explanation:

Option 3

I took the test

7 0
3 years ago
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Kevin drove 871 miles in 13 hours. At the same rate, how many miles would he drive in 11 hours?
poizon [28]

Answer:

737 miles

Step-by-step explanation:

So we know that he drove 871 miles in 13 hours so first you want to do 871 divided by 13 and get 67 which means he drove 67 miles in one hour.  Finally you just have to multiply 67 by 11 and get 737.

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3 years ago
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