For someone to be an eyewitness what must they be able to do?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

Which change to the system wood cause the freely-moving piston to lower?