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Zinaida [17]
3 years ago
7

Which structure reduces friction between joints?

Physics
1 answer:
Roman55 [17]3 years ago
3 0

Answer:

The cartilage is the structure that reduces friction between joints.

Explanation:

Cartilage is the tissue between the bone joints. They are composed of several membranes and cellular groups. One of them called synovial membrane which provides lubricant to the edges of tissue that are touched by the bones. Reducing the friction and absorbing it so the body can move without obstacles.

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A weight of 50.0 N is suspended from a spring that has a force constant of 210 N/m. The system is undamped and is subjected to a
Fittoniya [83]

Answer:

The maximum value of the driving force is 1044.01 N.

Explanation:

Given that,

Weight of the object, W = 50 N

Force constant of the spring, k = 210 N/m

The system is undamped and is subjected to a harmonic driving force of frequency 11.5 Hz.

Amplitude, A = 4 cm

We need to find the maximum value of the driving force. The force is given by the product of mass and maximum acceleration as :

F=mA\omega^2 .....(1)

A is amplitude

m is mass,

m=\dfrac{W}{g}\\\\m=\dfrac{50}{10}\\\\m=5\ kg

\omega is angular frequency

Angular frequency is given by :

\omega=2\pi f\\\\\omega=2\pi \times 11.5\\\\\omega=72.25\ rad/s

Equation (1) becomes :

F=5\times 0.04\times 72.25^2\\\\F=1044.01\ N

So, the maximum value of the driving force is 1044.01 N.

6 0
4 years ago
What changes to landforms are caused by movements at transform boudaries
I am Lyosha [343]
Not much changes, but there are some great pressure so some hills may form. 
4 0
3 years ago
Spiderman has a mass of 80 kg. He knows his webbing will break if it is exposed to a 200 N force. What is the maximum height he
likoan [24]

Answer:

This depends on the writers

if they want they can make spiderman deny the laws of nature

8 0
3 years ago
What characteristic of an element determines how its atoms can bond with other<br>atoms?​
wlad13 [49]

Answer:

The number of electron in the outermost shell of a particular atom determine how the reactivity of  atoms to form chemical bonds with other atoms

Explanation:

This is because the number of atoms in the outer shell will determine if the atom has to gain or loose electrons for it to bond with other atoms

Hope this helps, and if it does mark as branliest answer thx

8 0
3 years ago
Read 2 more answers
An object dropped from a cliff falls with a constant acceleration of 10 m/s2.Find its speed 5 s after it was dropped.​
Tomtit [17]

Answer:

50m/s2

Explanation:

u=0m/s

a=10m/s

v=?

t=5s

v=u+at

=0+(10×5)

=0+50

=50m/s

6 0
3 years ago
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