List 3 to 5 ways to reduce friction

2 answers:

8 0

Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction
Lubrication is another way to make a surface smoother
Make the object more streamlined
Reduce the forces acting on the surfaces
Reduce the contact between the surfaces.

svp [43]3 years ago

5 0

1.Make the surfaces smoother. Rough surfaces produce more friction and 2.smooth surfaces reduce friction.

3.Lubrication is another way to make a surface smoother.

4.Make the object more streamlined

5.Reduce the forces acting on the surfaces.

6.Reduce the contact between the surfaces.

hope this helps ;)

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A Micro –Hydro turbine generator is accelerating uniformly from an angular velocity of 610 rpm to its operating angular velocity

Salsk061 [2.6K]

Answer:

Angular displacement of the turbine is 234.62 radian

Explanation:

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$\omega_1 = 2\pi(\frac{610}{60})$

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similarly final angular speed is given as

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$\omega_2 = 87.65 rad/s$

angular acceleration of the turbine is given as

$\alpha = 5.9 rad/s^2$

now we have to find the angular displacement is given as

$\theta = \omega t + \frac{1}{2}\alpha t^2$

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$\theta = 234.62 radian$

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3 years ago

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GarryVolchara [31]

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For each of our planets orbiting the Sun, the relationship between the orbital period and semimajor axis can be represented by the equation as:

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