Un trineo con masa de 8.00Kg se mueve en línea recta sobre una superficie horizontal sin fricción. En cierto punto, su rapidez es de 4.00 m/s; mas adelante, su rapidez es de 6.00 m/s. Utilice la definición de trabajo y energía cinética para determinar la fuerza que actúa sobre el trineo, suponiendo que tal fuerza es constante y actúa en la dirección del movimiento del trineo.

Protons and neutrons are found within the nucleus of an atom

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.