If humans only have three kinds of color photo-receptors, how can we see so many different colors?

Air enters a nozzle steadily at 280 kpa and 77°c with a velocity of 50 m/s and exits at 85 kpa and 320 m/s. the heat losses from the nozzle to the surrounding medium at 20°c are estimated to be 3.2 kj/kg.

At 16, Juana is at an appropriate weight and likes to eat whatever she wants to. What's the best strategy to ensure Juana's health? A. start paying attention to her diet so she won't gain weight later and walk once a day B.

According to the law of conservation of mass, in a chemical reaction, the mass of the reactant will always be different from the mass of the product.

What is it called when a solid turns directly into a gas

Magine a satellite is orbiting the moon. How would the satellite behave if the moon were to suddenly disappear? A) The satellite would stop moving. B) The satellite would continue to move in its orbital path.

What is a Nebulas relationship between pressure and gravity

When the net force on an object is greater than 0, how is its related to its acceleration

Explain the difference between kinetic and protial energy.

Edward travels 150 kilometers due west and then 200 kilometers in a direction 60° north of west. What is his displacement in the westerly direction

January 1st 37°F January 7th 48°F January 14th 52°F January 18th 51°F January 21st 45°F January 25th 41°F January 31st 55°F When looking at a data set of numbers, the mean is the average. Look at the table above.