Calculate the kinetic energy of an electron ejected from a piece of sodium (φ = 4. 41x10–19 j) that is illuminated with 295 nm light.

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.

Analyze the forces acting on a cyclist who is slowing down as he or she climbs a hill

Respiration involves the breakdown of sugar. this process results in the production of energy for the cell. i'm order for cells to produce the most energy, what gas should be present?