At the entrance of most beaches, there is a bulletin board with notices about water conditions: maybe a faded sign warning about rip currents and a list of this week's tide tables. Most people pass them by without a second thought, but if you want to enter the ocean, it is important to know its movements, whether to avoid being caught in a riptide or to figure out when the waves will be at their best.
Hope this helps
it allows only a reduced number of electrons to flow through it.
The power equals energy divided by the time
P=E/t
P=1200/60
P=20W
Hope you get it!
Answer:
Stars create new elements in their cores by squeezing elements together in a process called nuclear fusion.
Explanation:
Answer:
(3) The electrons are attracted to the positively charged nucleus.
(4) Positively charged protons are located in the tiny, massive nucleus.
(6) The negatively charged electrons are spread out in a "cloud" around the nucleus.
Explanation:
An atom is the basic particle in which a matter is formed. It can either be charged or neutral. When it losses or gains an extra electron, it becomes charged, an ion. While a neutral atom is an atom which has no charge, because it has the same number of electrons and protons. The protons are located in the tiny massive nucleus of the atom, while the electrons are in orbits or cloud around the nucleus.
