Answer:
A vase on a table overcomes gravity because of the upwards force of the table against it, which is stronger than the force of gravity. If you were to move the vase off the table it would no longer have anything stopping gravity from breaking it.
Explanation:
Answer:
it is not safe if you put the beaker down not on the wire gauze about the flame. SAFETY FIRST
Explanation:
Alpha particle is equivalent to B. Helium atom (2 protons, 2 neutrons)
Pressure varies in the atmosphere because air molecules are being pulled down towards the center of the earth-hope this helps!