Felipe mide una habitación usando sus pies. (Sus pies son cada uno de un pie de largo.) Estima que la habitación mide unos diez pies y medio por trece pies y medio. Calcula que el área de la habitación es: 10.5' × 13.5’ = 141.75 pies2. 1. ¿Cuál crees que es la mejor descripción de la zona de la habitación? (Marque su elección.)

A. El área de la habitación es exactamente 141.75 pies2.
B. El área de la habitación es de aproximadamente 142 pies2.

2. Explique su respuesta:

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?

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.