How many liters of water at 20 °C and
90 °C need to be
mixed to obtain 300
liters of water at 30
°C?

Please, I really need your help

=force × distance a. work b. velocity c. pressure d. momentum

The radius of an atom is closest in size to a

Ascientist is working with a new kind of quantum dot to make a dye. he is applying newton’s laws to the particle, but it seems to be breaking these laws of physics. which action will most likely the scientist study the particle’s motion? a. he needs to remember that the particle is too large for quantum analysis. b. he must continue to use newtonian mechanics, but he needs to learn more about the particle. c. he needs to use quantum mechanics, not newtonian mechanics, because this is a nanotechnology product. d. he must determine new physical laws that only apply to quantum dots.