(a) At equilibrium position, the net force is zero. Therefore, the spring force must be equal and opposite to the weight of the block.

The equation for the net force on the block is as follows,

The expression for the spring force is,

Here, k is the spring constant and x is the displacement of the block from the equilibrium position.

Replace with, with and rearrange the expression for k.

Here, m is the mass attached to the spring and g is the acceleration due to gravity

Substitute for m, 9.81 m/s2 for g and 36 cm for x.

Thus, the spring constant is approximately

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.

12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.