The input voltage to the \( R C \) circuit is given as \( \boldsymbol{x}(t)=t e^{-t / R C} u(t) \) and impulse response of the circuit is given by \( \mathbf{h}(\mathbf{t})=\frac{\mathbf{1}}{\mathbf{R C}} e^{-t / R C} \mathbf{u}(t) \) Find the output \( y(t) \).

A historian is exploring the demographic patterns in West Africa's high forest zone. Which historical factor best explains the hig population density in this area? a. Absence of significant slave raids b. Consistent low temperatures c. Frequent and devastating wars d. Lack of fertile soils for agriculture

A linguist is studying the Yoruba language. Which factor contributed most to its historical spread across West Africa? a. Its adoption as an ECOWAS official language b. The expansion of the Benin Kingdom c. The influence of European colonial rule

Corruption has been a persistent issue in West Africa's governance. What is one reason public officials engage in corruption? a. Widespread support for autocratic governance models b. International organizations encourage the privatization of public services c. Strict enforcement of anti-corruption laws by civil society d. Low salaries, poverty, and greed create incentives for bribery

Regions with projected low support ratios by 2050 will primarily face challenges in: a. Increasing agricultural productivity. b. Attracting international migration. c. Reducing fertility rates. d. Sustaining elderly care systems.

Cocoa farming in Ghana is supported by specific agricultural practices. What method is most commonly used for drying cocoa beans after fermentation? a. Sun drying combined with artificial heating b. Employing large-scale solar drying panels c. Using mechanized dryers for rapid drying d. Spreading beans in the open air for six days