When the Earth is on one side of the sun, a star’s location is recorded. In six months, when the Earth is on the other side of the sun, the same star is observed and the distance between the first observation and the second is calculated. What is this an example of? spectrometer
GAIA
parasec
trig parallax

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?