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madreJ [45]
3 years ago
8

Riley is doing an experiment working with friction. He wants to find two ways to modify an object that could increase or decreas

e the same type of friction
Physics
2 answers:
Dmitrij [34]3 years ago
8 0
If the type of friction is sliding friction, it may be increased by increasing the roughness of the surface and may be decreased by smoothing the surface or applying a lubricant.
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

As we know that friction force is a contact force which opposes the relative motion between two surfaces in contact.

So here we can change the force between two surface when they move relative to each other.

Here when Lubrication is used between two surface then the relative motion of two planes becomes easy. So by lubrication of the surface either by oil or by smoothing the plane we can say that friction force will be reduced.

Also friction force depends on the effective contact points between two surfaces. So as we increase the contact points between two surfaces then the effective frictional force will increase.

Also we know that friction force is given by

F_f = \mu F_n

now as we increase the normal force between two contact planes either by increasing the weight or by applying normal external force we can say that friction force will increase.

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Answer:

biopsychlogy

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6 0
3 years ago
A bike travels at a constant speed for 4.00 m/s for 5.00 seconds. How far does it go
kicyunya [14]

Answer:

20 metres

Explanation:

<em>Speed</em><em> </em><em>=</em><em> </em><em>distance</em><em> </em><em>÷</em><em> </em><em>time</em>

<em> </em>

<em>s =  \frac{d}{t}</em>

If we substitute the values:

4 =  \frac{d}{5}

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3 0
3 years ago
Read 2 more answers
You push on a box with a force of 300 N directly north. Another person pushes the box with a
tangare [24]

Answer:

resultant \\  \: F =  \sqrt{ {300}^{2} +  {600}^{2}  }  \\  =  \sqrt{450000}  \\  = 670.82 \: newtons

7 0
3 years ago
A 512Hz tuning fork is used with a resonating column to determine the velocity of sound in water. If the spacing between resonan
EastWind [94]

Answer:

v= 1495.04 m/s

Explanation:

The formula for velocity of sound is given by ;

v= fλ   --------where

v= velocity of sound

f= frequency of turning fork

λ = wavelength

However,

Δ L = 1/2 λ   ------where Δ L is spacing between resonances.

1.46 = 1/2 λ

1.46 * 2 = λ

2.92 m = λ

v= fλ

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6 0
2 years ago
Calculate the acceleration due to gravity inside earth as a function of the radial distance r from the planet's center. (hint: i
denis-greek [22]
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G = 6.674e-11 m³/kgs²
4 0
3 years ago
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