List physical and chemical properties used to identify evidence at a crime scene

The heliocentric and the geocentric models of the solar system included these central principles

Which form of pure carbon is so hard that it can be used in cutting tools?

Neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along their length. these impulses propagate when charge suddenly rushes into and then out of a part of the neutron called an axon. measurements have shown that, during the inflow part of this cycle approximately 5.6x10^11 na per meter, each with a charge of e enter the axon. how many coulombs of charge enter a 1.10 cm length of axon during this process