Why does charging the droplets give more even coverage? Drag the terms on the left to the appropriate blanks on the right to complete the sentences Reset Help
repel
As the paint droplets move through the air to the surface of the car, there are forces that would cause them to bead up together and form larger droplets. drag attract cohesive If the droplets are charged with the same charge they more evenly each other, and spread out Why does charging the droplets help ensure that most of the paint ends up on the car?
a. Charged droplets polarize a surface of the car, so the additional attraction force of the droplets to the surface presents.
b. Charged droplets experience the less drag force from the air, so they lose less speed and hit the surface of the car with a larger momentum.
c. Charged droplets experience the acceleration in the Earth's electric field, so they hit the surface of the car at larger speeds.
d. Charged droplets not bead up together into the larger droplets, so the weight forces exerted on each droplet is smaller.

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

19. explain why a magnet from your refrigerator could not be used to lift something as heavy as a car. (chapter 7 – pages 202-203) 20. can a magnet ever have a single pole? explain your answer. (chapter 7 – page 208) 21. what happens to the wavelength of a wave if the frequency is increased? (chapter 9 – pages 280-281) 22. an ocean wave has a wavelength of 10 m and a frequency of 4.0 hz. what is the velocity of the wave? show the appropriate equation from your book and show your work with units. (chapter 9 – page 282) 23. as you sit outside, the sound of a siren becomes lower in pitch. is the emergency vehicle moving away from or towards you? explain how you know. (chapter 10 – page 315-316) 24. why are two astronauts in space unable to hear one another? (chapter 10 – page 307) 25. explain in at least 3 sentences how electromagnetic waves form. (chapter 11 – page 338-339) 26. using the chart on page 345 in your textbook, what are the three types of electromagnetic wave with wavelengths shorter than those of visible light. give an example of each. (chapter 11 – pages 345-351) 27. explain why a leaf usually appears to be green, but a rose typically appears red. (chapter 12 – page 373) 28. what is the difference in light that is refracted compared to light that is reflected? think in terms of speed of light as well as what happens to light waves when they interact with a medium. (chapter 12 – pages 369-370) 29. how are concave and convex lenses different? (chapter 13 – page 408-410) 30. what type of mirror is used in rearview mirrors in cars? why is it important that these mirrors have the warning, “objects in mirror are closer than they appear.”? (chapter 13 – page 405)

Which notation is used to represent an alpha particle? a. b. c. d.