A BLOCK PROJECTED UP A INCLINE A \( 0.5-\mathrm{kg} \) block rests on a horizontal, frictionless surface. The block is pressed back against a spring having a constant of \( \mathrm{k}=625 \mathrm{~N} / \mathrm{m} \), compressing the spring by 10.0 cm point A. Then the block is released. (a) Find the maximum distance d the block travels up the frictionless incline if \( \theta=30 \) (b) How fast is the block going when halfway to its maximum height?

\[ \text { QUESTION } 5 \] A bus accelerates from rest to \( 67 \mathrm{~km} / \mathrm{h} \) in 17 seconds; it continues with this speed for 0.04 hrs which is 144 seconds then decelerate at a rate of \( 2.5 \mathrm{~m} / \mathrm{s}^{-2} \) and comes to rest. Plot a velocity time graph for the journey then calculate. 5.1 The total distance covered. 5.2 The average speed for the whole journey

Para los vectores \( \vec{r}_{\mathbf{1}}=\mathbf{3} \boldsymbol{m} \) sobre el eje \( \boldsymbol{x} \) y \( \vec{r}_{2}=\mathbf{4 m} \) sobre el eje \( \boldsymbol{y} \), su suma será igual a: A. 1 m . B. 5 m . C. 7 m . D. 12 m .

11) \( U=\frac{1}{2} Q V \) for \( V \)

13. Um fio condutor transporta corrente no sentido vertical, de baixo para cima. Usando a regra da mão direita, determine o sentido do campo magnético ao redor do fio. \( \left[6,0 \times 10^{-6} \mathrm{~T}\right] \)

11. Um fio retilineo transporta uma corrente elétrica de 10 A , Determine a intensidade do campo magnético a uma distância de 2 cm do fio, \( ( \) Considere a permeabilidade do vácuo \( \left.\mu_{0}=4 \pi \times 10^{-7} \mathrm{~T} \cdot \mathrm{~m} / \mathrm{A}\right) .\left[10^{-5} \mathrm{~T}\right] \)