Answer:
X+20=2 i think this is a little above my head
You just have to arrange the equation such that the p is the only term at the left hand side of the equation. Express it in terms of r and m.
r = 1/2*m²*p
Divide both left and right hand side equations by 1/2*m²
p = r/(1/2 *m²)
Take the reciprocal of 1/2 and multiply it. The final answer is:
p = 2r/m²
A pendulum that swings fully once in 1.9 seconds has a length of 2.93 feet.
<h3>What is the length of a pendulum?</h3>
A basic pendulum is a machine in which the point mass is hung from a fixed support by a light, inextensible string.
Length of pendulum is defined as the distance between the point of suspension to the center of the bob and is denoted by " 1 ".
Given the equation:
![$$T=2 \Pi \sqrt{\frac{L}{32}}$$](https://tex.z-dn.net/?f=%24%24T%3D2%20%5CPi%20%5Csqrt%7B%5Cfrac%7BL%7D%7B32%7D%7D%24%24)
where L is the length in feet and T is the time in seconds.
Given that T = 1.9sec,
Hence:
![$$T=2 \Pi \sqrt{\frac{L}{32}}$$](https://tex.z-dn.net/?f=%24%24T%3D2%20%5CPi%20%5Csqrt%7B%5Cfrac%7BL%7D%7B32%7D%7D%24%24)
L = 2.93 feet
A pendulum that swings fully once in 1.9 sec has a length of 2.93 feet.
Learn more about Length of a pendulum here: brainly.com/question/8168512
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15/2 = 7.5
7.5 times 6 = 45
Check work: 45/6 = 7.5