Chuyển động rơi tự do là A. một chuyển động thẳng đều. B. một chuyển động thẳng nhanh dần.
C. một chuyển động thẳng chậm dần đều. D. một chuyển động thẳng nhanh dần đều

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass