1. A body submerged in liquid is buoyed up by the force equal to the weight of displaced liquid: Archimedes' Principal of Buoyancy.
2. If an object such as a spring is elongated by a distance of x, then the restoring force f is exerted by the object proportionate to x: Hooke's Law of Elasticity.
3. Pressure, flow speed, and height can change the rate of flow: Bernoulli's Principal.
4. Total pressure of a mix of gasses in a container is equal to separate pressures serrate gasses would exert of one occupancy: Dalton's Law of Partial Pressures.
5. Heat flow is proportionate to the gradient of temperature difference: Fourier's Law of Heat Conduction.
Well sound will bounce off anything like people or a wall
Without knowing anything about their magnitudes or directions, the only thing you can always say about thier combination is that it's the "net force" on the object.
Heat usually rises. I think.
Answer:
As block 1 moves from point A to point B, the work done by gravity on block 2 is equal to the change in the kinetic energy of the two-block system.
Explanation:
As block 2 goes down , work is done by gravity on block 2 . This is converted
into kinetic energy of block 1 and block 2 . Work done by gravity is mgh which can be measured easily . kinetic energy of both the blocks can also be measured.