Harvard UniversityCOMMUNICAT 404

information extract;This makes sense because if the two pucks are flying at each other at the same speed from opposite directions (and have the same mass), their total momentum before is zero (east plus the same amount of west equals zero), so their total momentum after sticking together is zero (zero plus zero equals zero).

This idea extends beyond pucks colliding. Any macroscopic mechanical system cannot hide momentum. But, if the system has parts that are so small that they are invisible to the naked eye, and these parts can undergo ordered motion, momentum can be transferred and hidden in these parts. For instance, if a tennis ball is covered with dust grains that are so small you can't see them, when the tennis ball gets hit, the dust can fly off to one side and carry away some of the momentum. If we don't notice the dust, and don't include it in our calculations, we would find that some of the total momentum becomes hidden after the collision.

Richard Feynman states in his book, The Feynman Lectures on Physics, the following:

"Are there also hidden forms of momentum-perhaps heat momentum?" The answer is that it is very hard to hide momentum for the following reasons. The random motions of the atoms of a body furnish a measure of heat energy, if the squares of the velocities are summed. This sum will be a positive result, having no directional character. The heat is there, whether or not the body moves as a whole, and conservation of energy in the form of heat is not very obvious. On the other hand, if one sums the velocities, which have direction, and finds a result that is not zero, that means that there is a drift of the entire body in some particular direction, and such a gross momentum is readily observed. Thus there is no random internal lost momentum, because the body has net momentum only when it moves as a whole.

questions

?1.explain the concept of Hydraulic accumulator basing on the wave machine instead of compressing air

2.relate the two motions of the Dolphin type wave generator

3.elaborate on the floating deice numbers as learnt form the manifolds platform

4. Motion of water in a wave is primarily?

5.what are the disadvantages of the wave energy?

6.categorize the waves energy based on direction

7. A _______ attached to the float moves up and down inside a cylinder.

8.relate the molded plastic material to the formation of the float (platform)

9. What are used to reduce to reduce the motion of floats?

10.what is the indirect contribution of the solar energy to the waves?

Answer:

Wave energy is free and non-ordinary wellspring of energy. Outfitting of energy by this strategy is all around polluting free and considering the way that they discard energy from the waves, leaves the water in a sensibly tranquil state in their wakes. chamber; A chamber joined to the buoy goes all over inside a chamber, fixed to the stage and is in like manner sensibly fixed. This chamber plan is utilized as a responding air blower. The stage is made of formed plastic with s frothed plastic concentration to show up at the essential thickness and strength. It is additionally called skim since it glides on the water. Moreover, it is perfectly healthy of chamber with wide and level base surface. Damping balances; Damping forefronts are utilized to decrease the advancement of the buoys. The stage is balanced inside the water by four gigantic brought down floatation tanks so it is kept up by the delicate quality forces.

Step-by-step explanation

1.Hydraulic finder wave machines, rather than squeezing air, the genuine water is compacted and dealt with in a high crushing variable aggregator or coordinated to a general vault, from which it goes through a water turbine electric generator.

2.Dolphin sort utilizes the buoy which has two turns of events. The first is a moving improvement about its own assistance with the interfacing shaft. Rotating progressions are caused between the buoy and the interfacing street. The other is for all intents and purposes vertical or hurling improvement about the accomplice bar support.

3. There are four manifolds that are principal for a stage. There are four colossal brought down floatation tanks which settle the stage. Stage is kept up by non-abrasiveness powers and no vertical or even relocation occurs because of wave activity

4. Wave improvement is basically even yet the advancement of the water is vertical. Mechanical force is obtained by skims utilizing the advancement of water. The idea imagines an enormous power that is driven all over by the water inside usually fixed partners.

5.- Unstable during high wind pressures

- It isn't adequately convincing

- The furnishing cost is more

6. Wave energy is free and non-ordinary wellspring of energy. Outfitting of energy by this strategy is all around polluting free and considering the way that they discard energy from the waves, leaves the water in a sensibly tranquil state in their wakes.

7. chamber; A chamber joined to the buoy goes all over inside a chamber, fixed to the stage and is in like manner sensibly fixed. This chamber plan is utilized as a responding air blower.

8. The stage is made of formed plastic with s frothed plastic concentration to show up at the essential thickness and strength. It is additionally called skim since it glides on the water. Moreover, it is perfectly healthy of chamber with wide and level base surface.

9. Damping balances; Damping forefronts are utilized to decrease the advancement of the buoys. The stage is balanced inside the water by four gigantic brought down floatation tanks so it is kept up by the delicate quality forces.

10. Waves are accomplished by the breeze, which in this way is accomplished by the unequal sun based warming and coming about cooling of the world's outer layer and the agitation of the earth.