A 0.400-kg mass is attached to a spring and set into simple harmonic motion. if

The spring constant is 5.46N/m.

Explanation:

The period of the mass in SHM is related to the spring constant by the equation

using this we solve for to get:

For our case we put in and :

which is our spring constant.

so what is 5 * 20 you would want to add it up just so you know the meters is the pounds and you can just add it to kilograms and that's all you need to know about meters and kilograms and grams just in for you know and it's like a night it's actually like yes 20 distance and it's like 17 distances from away