18. Un avión de rescate de animales que vuela hacia el este a 36.0 m/s deja caer una paca de heno desde una altitud de 60.0 m. Si la paca de heno pesa 175 N, ¿cuál es el momentum
de la paca antes de que golpee el suelo?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Connect the whole numbers on the periodic table to indicate what they represent?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?