Consider the graph. Which would best represent wearing a helmet vs. not, during a blow to the head in a crash? Explain. (4 points) Constant area. Smaller time corresponds to a higher peak force Force (N) 2 1 Time (s)

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

What are atoms of the same element with varying number of neutrons

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.