Which of newton’s laws can best be described using the terms mass and acceleration? a: 2nd b: 1st c: 3rd d: all of them

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?