Answer:
Second one
Explanation:
Lying on the floor is something you can do with the least amount of energy
The photoelectric emission is possible if the wavelength of the incident light is less than that of yellow light
Answer:
newton - motion, gravity
kepler - orbital paths
brahe - the sun goes around the earth
Explanation:
im not sure about brahe but its the only one that makes sense
Answer:
a transverse (sort of a plot of a sine or cosine graph, basically)
b longitudinal
c Electromagnetic (an electric wave and a magnetic wave travelling together at right angles to each other)
Explanation: