some galaxies have regions that are relatively blue other regions appear redder what does this varuation indicate about the differences between these regions?

The main difference between turbojets and rocket engines is the fact that A. turbojets are not dependent on oxygen from the air. B. rocket engines need oxygen from the air. C. turbojets carry their own supply of oxygen as oxidizers. D.

How much force is required to accelerate an 8 kg mass at 5 m/s

A scientist divided a population of fruit flies into two containers, each with a different kind of food. then she bred the fruit flies under these conditions for many generations.

What is caused by extra estrongen in women

Is this statement true or false? The littoral zone is exposed to air.

You can or can't pass on a scar to your offspring?

In addition to births and deaths what else can influence the population growth rate?

A 1300 kg car carrying four 84 kg people travels over a "washboard" dirt road with corrugations 3.2 m apart. The car bounces with maximum amplitude when its speed is 13 km/h.

Skeletal muscle cells have large stores of ATP that are readily available and alone can provide energy for maximal exercise lasting 30-60 seconds.

A catcher "gives" with a baseball when catching it. If the baseball exerts a force of 475 N on the glove such that the glove is displaced 8.97 cm, how much work is done by the ball? Answer in units of J.