The energy that a log has is transformed when burned. how does the chemical energy of the log compare to the heat and light energy it is transformed into? question 15 options: the amount of chemical energy is equal to the amount of heat and light energy. the amount of chemical energy is less than the amount of heat and light energy. the amount of chemical energy is more than the amount of heat and light energy. there is no way to know.

Rohit is trying to tune an instrument

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "