Alguien me podria ayudarr!!?? no entiendooo esto :(
2. La velocidad de la luz en el vacío es 300 000 km/s. La luz del Sol tarda en llegar a la Tierra 8 minutos y
19 segundos. Calcular la distancia entre el Sol y la Tierra.

3. Las siguientes tablas recogen los tiempos y las distancias recorridas por dos ciclistas que parten en el
mismo instante desde el mismo origen y en el mismo sentido en línea recta: no olvides cambiar de
unidades.

With these questions , 15 pts & brainliest

We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.

Does anyone have the answers to online physics course plato course physics, semester a v3.0