PLEASE HELP ME Natalie was training some new employees. When they successfully passed the training session, she printed out certificates and signed each one. She tried to scan the documents in order to save virtual copies of the signed certificates, but the images kept coming out smudged. What should Natalie MOST likely do to scan clear images of the certificates?

wipe the glass surface

replenish the paper in the paper tray

save the images to a USB drive rather than to the computer

check for a paper jam inside the machine

Scientists have changed the model of the atom as they have gathered new evidence. one of the atomic models is shown below. what experimental evidence led to the development of this atomic model from the one before it? a few of the positive particles aimed at a gold foil seemed to bounce back. the colors of light emitted from heated atoms had very specific energies. experiments with water vapor showed that elements combine in specific proportions. cathode rays were bent in the same way whenever a magnet was brought near them.