Un grupo de seis personas compiten estirando la cuerda en grupos de 3. Los primeros 3 tienen fuerzas equivalentes de 25N. Del otro lado de la cuerda, 2 de los competidores aplican fuerzas de 15 N cada uno y el último del grupo solamente estira con 5 N de fuerza. Calcular la resultante gráfica y analíticamente. ¿qué grupo gana?

Identify the type of synthetic material used in each object

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?