Un tren sale de una estación a una velocidad media de 25km/h durante 2 min. Después, avanza a una velocidad media de 90km/h durante 10 min, y baja su velocidad media a 25km/ h durante medio minuto para entrar en la siguiente estación. ¿Que distancia hay entre las dos estaciones?

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same