I can't find this answer anywhere, so I'll ask here: what item did they base the SI unit of mass (grams) off of? (in other words, to what object did they say "hey, lets make this equal 1 gram and then go from there"

How do you calculate displacement on a graph

What is the study of the strength and orientation of earths magnetic field

A wave has a speed of 50m/sec if its frequency is 100 hz what's it's wavelength

If then hypothesis for egg drop

Which statement best describes an atom? a protons and neutrons grouped in a specific pattern b protons and electrons spread around randomly c a group of protons and neutrons that are surrounded by electrons d a ball of electrons and neutrons

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a

What is Nothing. (sorry i have been wondering this for a very long time)