Which biome is home to half of earth's species?
a. tropical rain forest
b. taiga
c. temperate deciduous forest
d. grassland

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving