Question

$- 10m {}^{2} n {}^{3} +5m {}^{2}n {}^{3} - 7m {}^{2} n {}^{ 3}$
$4p {}^{7} - 5p7 - 10p {}^{7}$
$8x {}^{4}y {}^{5}z {}^{6} - 5x {}^{4} y {}^{5}z {}^{6} + 7x {}^{4} y {}^{5}z {}^{6}$
ayuda xfa ​

Answer 1

Explicación paso a paso:

$$K = \frac{1}{2} \bigg( \sum_{i = 1}^n\ m_i r_i^2 \bigg) \omega ^2$$$$= \frac{1}{2} [(2\ kg)(0.5\ m)^2 + (4\ kg)(0.2\ m)^2 + (2\ kg)(0.5\ m)^2 + (4\ kg)(0.2\ m)^2 ] (6\ rad/s)^2$$$$= \frac{1}{2} [ 1.32\ kg \cdot m^2 ] (6\ rad/s)^2$$$$\boxed{\ \ \ K = 23.8\ J \ \ \ }$$