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horsena [70]
3 years ago
13

A circular horizontal surface having an area of 1020.5 mm2that is completely immersed in a fluid experiences a uniform force of

1.06 mN. The pressure applied by the fluid on this surface is
Physics
1 answer:
Bingel [31]3 years ago
3 0

Answer:

Faya vei Abhikesh brass hahahahahaha

Explanation:

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A dog has a mass of 20 kg. If the dog is pushed across the ice with a force of 40 N, what is its acceleration?
olasank [31]

Answer:

The acceleration is 2 m/s2.

Explanation:

We calculate the acceleration (a), with the data of mass (m) and force (F), through the formula:

F = m x a  ---> a= F/m

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7 0
3 years ago
A cylinder 0.170 m in diameter rotates in a lathe at 530 rpm . what is the tangential speed of the surface of the cylinder?
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Diameter = 0.170 meter
Circumference = 0.170 π meters

530 rpm = 530 circumferences / minute

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8 0
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The energy required to completely remove the covalent bond between two
hoa [83]

Answer:

B is the answer. Correct me if I'm wrong

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When a solid is in the process of changing into a liquid and extra energy is added to the system, the temperature does not chang
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Answer:

D. The temperature does not change during a phase change because the average kinetic energy does not change. Therefore, the potential energy in the bonds between molecules must change.

Explanation:

When there is a change of state (for example, from solid into a liquid, as in this example), when energy is added to the system, the temperature of the substance does not change.

The reason for this is that the energy supplied is no longer used to increase the average kinetic energy of the particle, but instead it is used to break the bonds between the different particles/molecules. For instance, since in this case the substance is changing from solid to liquid, all the energy supplied during the phase change is used to break the bonds between the molecules of the solid: when the process is done, all the molecules will be free to slide past each other, and the substance has turned completely into a liquid.

The bonds between molecules store potential energy: therefore, this means that the energy supplied during the phase change is not used to change the kinetic energy, but to change the potential energy in the bonds between the molecules.

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