Which of the following are examples of chemical energy being released or stored? (2 points) |. Fireworks burning and exploding in the sky
||.The wind blowing a seed through the sky
|||.A guitar string making sounds
a
I only

b
I and II only

c
I and III only

d
I, II, and III

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class