QUESTION 4 Your friend tosses a ball straight up with a velocity of 10m/s. At the top of the toss, the magnitude of the ball's velocity is vm/s and the magnitude of its acceleration is
m/s?

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.