Max Planck and Albert Einstein developed the idea that light is energy radiated at the speed of light in the form of wave packets of energy called.
A. high energy waves
B. electromagnetic waves
C. photons
D. clusters

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity

Which changes of state do the labels represent? a: b: c:

Steelhead trout migrate up stream to spawn. occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b. leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?