ngth Measurements Measure the length of a Swedish fish with each of the following: (a) METRIC RULER A, and (b) METRIC RULER B. Note: Refer to METRIC RULER A instructions in Example Exercise 2.1. Refer to METRIC RULER B instructions in Example Exercise 2.2 0 7 10 13 14 15 8 11 12 5 1 ULERA (Estimate to a tenth of a division 10.7 cm)​

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box