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ikadub [295]
3 years ago
10

A 10-kg disk-shaped flywheel of radius 9.0 cm rotates with a rotational speed of 320 rad/s. part a determine the rotational mome

ntum of the flywheel.
Physics
1 answer:
jonny [76]3 years ago
6 0

The solution for the rotational flywheel is:

 

L = I x ω 

 

But we need to solve for l first, the computation is:

 

I = 1/2 m r^2 = 1/2 (10) (0.090^2) = 0.0405 kg*m^2 

ω = 320 rad/s 

So plugging in the information above, will give us:

 

L = 0.0405 * 320 = 12.96 kg*m^2/s or about 13 kg*m^2/s 

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A force of 8.0 N is along x direction, another force of 6.0 N is along +y direction. If both forces are acting on a point object
Darya [45]

Answer:

Resultant force, R = 10 N

Explanation:

It is given that,

Force acting along +x direction, F_x=8\ N

Force acting along +y direction, F_y=6\ N

Both the forces are acting on a point object located at the origin. Let the resultant force of the object is given by R. So,

R=\sqrt{F_x^2+F_y^2+F_xF_y\ cos\theta}

Here \theta=90^{\circ}

R=\sqrt{F_x^2+F_y^2}

R=\sqrt{8^2+6^2}

R = 10 N

So, the resultant force on the object is 10 N. Hence, this is the required solution.

6 0
3 years ago
Which method do acoustic use to limit reverberations in music halls
dalvyx [7]

Answer:

reverberation time appropriate to the use and size of the room, adequate balance between direct and reverberant sound, intimacy and good sound diffusion in the room to obtain a uniform sound.

Explanation:The process of ... second method measured the speed of sound propagation by the phase shift.

8 0
3 years ago
Exactly one pound of bread dough is placed in a baking tin. the dough is cooked in an oven at 350 °f releasing a wonderful aroma
Sladkaya [172]
The mass of the baked loaf will be less than the original dough. In making dough for bread, we have ingredients that are liquid such as water, melted butter, food flavoring, etc. All of this liquid ingredients mixed on the dough will definitely turn into vapor. This vapor is responsible for releasing of the aroma of the freshly baked bread.
7 0
3 years ago
6. Match the statements given in column 'A' with those in column 'B':
likoan [24]

Answer:

1. Urea,                    (d)Fertilizer

2. Combines,          (c) Harvesting and threshing

3. Silos,                   (b) Storage of grains

4. Seed drills,          (a) Sowing seeds

5. Irrigation,             (f) Sprinklers

6. Tilling,                  (e) Preparation of soil

Explanation:

1) Urea is a widely used and important fertilizer in the agricultural industry

2) The combine harvester combines three categories of harvesting grain drops such as threshing reaping and winnowing

3) Silos are used to store grains

4) A seed drill is a seed planting mechanism for burying seeds to a particular depth during seed planting

5) Irrigation is the application of required volume of water to plants

6) Tilling is the digging, turning, and staring operations meant to prepare the soil.

4 0
2 years ago
A balloon with a charge of 6.0 μC is held a distance of 0.80 m from a second balloon having the same charge. Calculate the magni
Yuliya22 [10]

Answer:0.506 N

Explanation:

Given

Charge on first balloon q_1=6\ \mu C

Charge on second balloon is q_2=6\ \mu C

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F=\dfrac{kq_1q_2}{r^2}

Where K is constant

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F=\dfrac{324\times 10^{-3}}{0.64}

F=0.506\ N

6 0
3 years ago
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