Find unit vectors along A= i + j- 2k and B= i + 2j - k

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation