I do not understand this. Newtons 3rd Law claims every force is met with another opposite and equal force. Why then when I punched a spackle wall it breaks?

A block of dry ice resting on a table is given a brief push. A moment later, what forces act on the block?

I have a 4000 lb container on wheels on a flat bed truck with side rails. The load is secured with a strap across the face of load and connected to the side rail. What force is exerted on the strap when the truck accelerates? Thanks for your help!

Question: Besides its weight, a 2.70 kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (4.20 - 3.30) m, where the direction of is the upward vertical direction. Determine the other force. Where do I begin??

Okay, I just want to know when does a submarine experience greater buoyant force? Is it when it is near the surface of the ocean or near the ocean floor, considering gravity is the same for both situations.