4 years ago

PLEASE ANSWER List: What are the three types of joints in the human body?

Physics

1 answer:

horsena [70]4 years ago

4 0

1.Synovial joint
2. pivot joint
3. Hinge joint

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IceJOKER [234]

Explanation:

spherical lenses which are curved outward are CONVEX lenses

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3 years ago

Why does air blows from one place to another

Maslowich

Air blows from one place to another because gases move from high-pressure areas to low-pressure areas

In simple words

it happens because of pressure differences.

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2 years ago

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Calculate the potential energy of a body of a mass 2kg held 4 meters above the ground if g=10m/s?

Drupady [299]

Answer:

16000

Explanation:

Mass(m)=2Kg (1kg= 1ooo g then 2 kg=2000 g)

Velocity(v)= 4 meter

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We know that,

P.E= 1/2 mv^2

or, 1/2 × 2ooo × 4^2

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or, 2000×8

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2 years ago

[04.05] An atom has an atomic number of 12 and a mass number of 25. How many neutrons does the atom have?

gizmo_the_mogwai [7]

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Explanation:

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3 years ago

When you whirl a can at the end of a string in a circular path, what is the direction of the force that acts on the can

andreyandreev [35.5K]

Answer:

Toward the centre of the circular path

Explanation:

The can is moved in a circular path: this means that it is moving by circular motion (uniform circular motion if its tangential speed is constant).

In order to keep a circular motion, an object must have a force that pushes it towards the centre of the circular trajectory: this force is called centripetal force, and its magnitude is given by

$F=m\frac{v^2}{r}$

where m is the mass of the object, v its tangential speed, r the radius of the trajectory. This force always points towards the centre of the circular path.

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3 years ago