A 1.6 m pendulum is pulled 13° away from equilibirum and let go. What is its oscillation? Pls answer

Asteady current of 1 ais flowing through a conducter calculate the number of electrons that flows through conductor in 1second

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n