Which of the following is not true?

if the net force of an object is not zero, then there will be acceleration of some kind and the object will change the magnitude and/or direction of motion.

newtons are the unit used for forces.

when a force acts on an object unopposed, the net force is zero.

if the sum of all forces on an object is zero, then the object will not accelerate.

Which uses electromagnetic radiation to discover the properties and composition of bodies in space? space probe space station space shuttle space observatory

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.