(a)
<span>Let: </span>
<span>a be the acceleration of the system, </span>
<span>g be the acceleration due to gravity, </span>
<span>T be the tension in the string. </span>
<span>For mA: </span>
<span>T = mA a </span>
<span>For mB: </span>
<span>mB g - T = mB a </span>
<span>Adding to eliminate T: </span>
<span>mB g = (mA + mB)a ...(1) </span>
<span>a = mB g / (mA + mB) </span>
<span>= 7.0 * 9.81 / (11.0 + 7.0) </span>
<span>= 3.815 m/s^2 </span>
<span>= 3.82 m/s^2 to 3 sig. fig. </span>
<span>(b) </span>
<span>Let: </span>
<span>s be the distance to the edge of the table, </span>
<span>t be the time taken. </span>
<span>s = at^2 / 2 </span>
<span>t = sqrt(2s / a) </span>
<span>= sqrt(2 * 1.250 / 3.815) </span>
<span>= 0.810 sec to 3 sig. fig. </span>
<span>(c) </span>
<span>From (1): </span>
<span>(mA + mB)(a / g) = mB </span>
<span>mA(a / g) = mB(1 - a / g) </span>
<span>mA = mB(g / a - 1) </span>
<span>= 4.0(100 - 1) </span>
<span>= 396 kg.</span>
Answer:
It was because it was a strategically placed there because it was in the middle of Asia and Europe and made a convenient space for trade routes for the both continents
Explanation: It was a trading post and the two continents (Asia and Europe) had benefits from the location the trading post was at.
A rigid class system is a manner of social organization in which, at birth, an individual already pertains to a certain group and social mobility is almost non-existent along lifetime.
A society which follows this model would prevent immigration. Newcomers usually pertain to the lower social classes, and if they know in advance that they will have no possibilities of improvement, they would probably choose a different destination. In the end, the most damaged ones by such a system are the national individuals who pertain to the lower social classes, as the structures that function in their country foster inequality and prevent them from improving their situation and living conditions.
A multi-party system prevents the leadership of a single party from controlling a single legislative chamber without challenge. If the government includes an elected Congress or Parliament, the parties may share power according to proportional representation or the first-past-the-post system
<span> Lexington at about 5 a.m. they don't know how shot the first shot that day
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