I’m a photoelectric effect, which property of the incident light determines how much kinetic energy the ejected electrons have ? A) brightness
B) frequency
C) size of the beam
D) none of the above

Explain what will happen if decomposers were apsent from a forest ecoysystem.

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.

Given the data calculated in parts a, b, c, and d, determine the initial rate for a reaction that starts with 0.85 m of reagent a and 0.70 m of reagents b and c?