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1. Both containers are the same number of metal balls. In the left container they always bounce at some height, completely elastic bouncing off the bottom. most accurate scale In the right - still lying on the bottom. most accurate scale We know that the ball bounce straight up and do not touch each other. Balls lot.
Number 3. Both containers poured equal amounts of water and she dives at two identical balls. On the left in the container easy ball on the strings tied to the days as well. In the right - a heavy metal ball suspended on a string of up to suspension, which is fixed separately. Both balls and completely submerged in water.
Zenoviy Popenyuk most accurate scale January 7, 2014 9:58
2. Scales most accurate scale are in equilibrium. Because the containers tightly closed and the force acting on the first scales equal to the force acting on the second most accurate scale and the sum of P grandmother, and the air inside the container. Reply Remove
3. Left pan goes up. Because the force acting down on the right balance - a Mg water (weight balls zrivnovazhuyetsya Fa beads and thread tension) and down to the left operates mg Mg water and balls, most accurate scale but balls Fa acting up. Hence we see that, down the left operates Mg - (Fa- mg), and the right Mg. As Fa balls> mg beads, the left pan easier. Reply Remove
2. Since the containers tightly closed, the force acting on the left cup weights = force acting on the right cup weights and weight equal to the weight of the headstock + container + weight of the air inside the container. most accurate scale => Balance, most accurate scale equilibrium will be. PS Happy New Year and Merry Christmas !!! Reply Remove
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Scales in balance. Consider the left Schalke If absolutely elastic balls bounce off the bottom, we can say that they are accelerated as up and down the same, ie acceleration changes the direction mirror and actually acceleration and movement up, down, we can be neglected. (Acceleration acting up "overcomes" acceleration acting downwards). And right shaltsi balls do not move and no acceleration. Since the mass of the balls are the same, then P is P bodies left the bodies right. PS By the way, as the molecular-kinetic theory, balls to the right as "moving" :) Reply Remove
Last answer to the problem 1. Since a lot of balls and they jump to a certain height perfectly elastic, it can be assumed that the center of mass of the system is still at a certain height from the bottom of the container => gravitational force = force reaction most accurate scale container bottom => scales will , equilibrium. Reply Remove
3. The rights outweigh the pan because the power that operates most accurate scale as Schalke adults. Archimedes force-weight water-mass white balls and the right balance (Archimedes force tension thread +) - (weight of water + mass black balls) Reply Remove
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