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artcher [175]
3 years ago
7

What’s contact force ?

Physics
2 answers:
kodGreya [7K]3 years ago
5 0

Explanation:

Contact force is any force that requires contact.  An object that exerts a force on another object by touching it is exerting a contact force.  Examples of contact force are friction and normal force.

Examples of a non-contact force are gravity and magnetism.

natima [27]3 years ago
4 0

Any force that requires contact force
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2 years ago
For a particular casting setup, the top of the sprue has a diameter of 0.030 m, and its length is 0.200 m. The volume flow rate
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v_1=0.708 m/s

Pressure at the top and bottom of the sprue is atmospheric

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Substitute the values then we get

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Reynolds number=42525

The Reynolds number is greater than 4000 .Therefore, the flow is turbulent.

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