1)El vector resultante de la suma de dos vectores fuerza M y N es de 20NT y forma con M un ángulo de 40°. M mide 12 NT. Encuentre N, en forma gráfica y analítica. Analíticamente, sugerencia, usar el teorema de los cosenos. 2)La velocidad resultante con que una lancha cruza un río de una orilla a la otra es de 56 km/h. Si la velocidad de la lancha es de 48 km/h. ¿cuál es la velocidad de la corriente? forma gráfica y analítica.​

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

here are some of the ways in which chemical and nuclear reactions differ.

explanation:

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.