Answer:
Explanation:
But the reality is that: Multiple magnetic fields would fight each other. This could weaken Earth's protective magnetic field by up to 90% during a polar flip. Earth's magnetic field is what shields us from harmful space radiation which can damage cells, cause cancer, and fry electronic circuits and electrical grids.
How do magnetic poles interact? Magnetic poles that are alike repel each other, and magnetic poles that are unlike attract each other. The area of magnetic force around a magnet. The magnetic field lines spread out from the north pole, curve around, and return to the south pole.
When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. The earth is like a giant magnet, but unlike two free hanging magnets, the north pole of a magnet is attracted to the north pole of the earth.
Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.
(hope this helps can i plz have brainlist :D hehe)
Answer:
The acceleration is g.
Taking the upward direction as positive
V = Vy y - 1/2 g t^2
Taking the downward direction as positive
V = -V y + 1/2 g t^2
One can choose either direction as positive, but the acceleration is
the same as g (it is g) while the projectile is in the air.
Answer:
CaCl2 is a reactant
Explanation:
Calcium carbonate (CaCO3) is a reagent, it is found on the left side, what is found on the right side are the products.
Answer: The distance along the incline the mass slide from the point of release until it is brought momentarily to rest is <em><u>0.68 meter</u></em>
Explanation:
Let distance slide by block along the incline be L
where h = initial height of block from the ground level
Since the inclined surface is frictionless so total mechanical energy is conserved for the spring-block system
Therefore applying conservation of mechanical energy we get
where
= Initial spring potential energy
= Initial gravitational potential energy
= Initial kinetic energy
= Final spring potential energy
=Final gravitational potential energy
= Final kinetic energy
=>
=>
Thus the distance along the incline the mass slide from the point of release until it is brought momentarily to rest is <em><u>0.68 meter</u></em>
