Encuentra la distancia que ha recorrido un automóvil al cabo de 15 segundos, si lleva una velocidad de 70 km/h y forma un ángulo de 45° con el eje x.
Imagínate que pretendes atravesar un rio y te lanzas buscando directamente el punto opuesto en la orilla

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

How many times did thomas edison mess up the light bulb