A particle undergoes two displacements. The first has a magnitude of 199 cm and makes an angle of 149 degrees with a positive x axis. The resultant displacement has a magnitude of 115 cm and is directed at an angle of 32.1 degrees to the positive x axis. Find the magnitude of the second displacement. Answer in units of cm.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.