An ideal otto cycle operates between temperature and pressure limits of 300 k and 1200k, and 100 kpa and 1.4 mpa. using the air-standard assumptions (a) calculate the amount of heat- rejection and heat-addition and (b) the net work output during the cycle per unit mass of working fluid. also, calculate the (c) thermal efficiency of the cycle and (d) the mean effective pressure. take into account the change in specific heats with temperature

The ph of your mouth is very similar to that of stomach. true or false?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

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.