一道物理理解问答、计算题,英文版的,本人不大理解题目的意思,Figure below shows a uniform ruler of 120g is suspended at its midpoint from a spring balance which is calibrated in Newton(N).A triangular block is suspended from th
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![一道物理理解问答、计算题,英文版的,本人不大理解题目的意思,Figure below shows a uniform ruler of 120g is suspended at its midpoint from a spring balance which is calibrated in Newton(N).A triangular block is suspended from th](/uploads/image/z/2431367-71-7.jpg?t=%E4%B8%80%E9%81%93%E7%89%A9%E7%90%86%E7%90%86%E8%A7%A3%E9%97%AE%E7%AD%94%E3%80%81%E8%AE%A1%E7%AE%97%E9%A2%98%2C%E8%8B%B1%E6%96%87%E7%89%88%E7%9A%84%2C%E6%9C%AC%E4%BA%BA%E4%B8%8D%E5%A4%A7%E7%90%86%E8%A7%A3%E9%A2%98%E7%9B%AE%E7%9A%84%E6%84%8F%E6%80%9D%2CFigure+below+shows+a+uniform+ruler+of+120g+is+suspended+at+its+midpoint+from+a+spring+balance+which+is+calibrated+in+Newton%28N%29.A+triangular+block+is+suspended+from+th)
一道物理理解问答、计算题,英文版的,本人不大理解题目的意思,Figure below shows a uniform ruler of 120g is suspended at its midpoint from a spring balance which is calibrated in Newton(N).A triangular block is suspended from th
一道物理理解问答、计算题,英文版的,本人不大理解题目的意思,
Figure below shows a uniform ruler of 120g is suspended at its midpoint from a spring balance which is calibrated in Newton(N).
A triangular block is suspended from the metre rule at the 25cm mark.It is balanced by a 250g mass suspended from the 75cm mark.[Take g=10N/kg.]
(a)Calculate the mass of the triangular block.
(b)Why the mass of the metre rule does not play a part in the calculation in (a)?
(c)What is the reading on the spring balance?
一道物理理解问答、计算题,英文版的,本人不大理解题目的意思,Figure below shows a uniform ruler of 120g is suspended at its midpoint from a spring balance which is calibrated in Newton(N).A triangular block is suspended from th
下图表示一个120g的尺子被悬挂在一个校准牛顿的秤的中央.
一个三角悬挂在尺子25cm处,同时在尺子75cm处,一个250G的“重量”(在这里,重量为名词)和三角保持着平衡.[用g=10n/kg]
a 三角的重量为?
250
b 为什么尺子的重量并不干扰计算?
because the calculation involves only the triangular block and the 250g mass,the weight of the ruler doesn't interfere with the weight of the triangular block.
c 上面那个称会显示什么(如果比较三角和250这个重量的话)
0