A ball is dropped from 34.8 ft above the ground. Assume that air-drag is negligible in this case. (a) At what height is half of its energy kinetic and half potential?
ft

(b) Using energy considerations only, what is the velocity of the ball just as it hits the ground?

ft/s

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

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.