You can study article about slope and speed
Answer:
Explanation:
You can identify an unknown substance by measuring its density and comparing your result to a list of known densities. Density = mass/volume. Assume that you have to identify an unknown metal.
Answer:
Birds
Explanation:
Some types of birds eat seeds do they use there beaks to easily crack through the seeds
Answer:86
Explanation: to find atomic mass you take the number of protons and the number of neutrons. therefore you take the 40 protons and the 46 neutrons to find the mass. :)