Una bicicleta se desplaza con una rapidéz de 10m/s donde sus ruedas tienen un diametro de 60cm el ciclista comienza a frenar uniformemente y se detiene en 40s.
-calcular que distancia recorrió en ese tiempo, con que desesaleración angular frenó, cuantas vueltas dieron las ruedas hasta detenerse.

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Why don't you see your reflection in water with waves or repples

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?