Explanation:
TO VERIFY THE PRINCIPLE OF MOMENTS WHICH STATES THAT IF A NUMBER OF COPLANAR FORCES ACTIING ON A BODY S ,KEEP IT IN EQUILIBRIUM AND THEIR MOMENT ARE TAKEN ABOUT ANY POINT IN THEIR PLANE,THE SUM OF THE CLOCKWISE MOMENTS ,IS EQUAL TO SUM OF ANTICLOCKWISE MOMENT.
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Answer:
The answer is 41,4 
Explanation:
To understand this problem we need to visualize when block is at the equilibrium position and when the displacement is x=
.
According to Newton's law
, if we find the force applied to the block, we can find the acceleration since we know the mass of the block.
<u>If you compress a spring by x displacement under F force, the spring's force can be found as:</u>

Therefore 
And to find <u>acceleration</u>:
→
→ 
The answer is oscilloscope
Chameleon's tongue is more fast than thought. Its long sticky tongue moves at an amazing ballistic speed which lashes out unsuspecting insects and bugs. Now let us see how fast it is.
GIven:
acceleration of the chameleon's tongue- 260 m/s
2 for 20 ms
constant speed 30 ms
50 ms total time
1/20 of a second
solution:
<u>260</u> = <u> n</u><u> </u>
20 50
<u>20 n </u>= <u>13, 000</u>
20 20
n= 650 m/s
The lights will no longer work because the circuit will be cut