Hi this is a two part question !

12. what is the net force on the box above? *
1 point
a. 10 n
b. 15 n
c. 25 n
d. 30 n

13. in which direction will the box from above move? *
1 point
a. right
b. left
c. it will not move.

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

The mantle is made up of which structural zones?

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?