Use the graph to answer the following question. Pressures are listed in an alternate unit of kilopascals (kPa).
At what altitude is the air pressure is 60 kPa (450 mmHg)?
a 4200 m
b 6300 m
C 7000 m
d 1800 m

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

Find the number of moles of argon in 364g of argon.