Answer:
F = 91.27 N
Explanation:
Parameters given:
Charge of alpha particle, q = +2.0e = =
Charge of gold nucleus, Q = +79e = =
Distance between the alpha particle and gold nucleus, r =
Electric force is given as:
F =
where k = Coulomb's constant
Therefore:
The electric force acting on the alpha particle when the alpha particle is from the gold nucleus is 91.27 N.
Solid
example book
liquid
example water
gas
example helium or hydrogen
plasma
eg. florescent lights or plasma TVs
By multiplying speed and time
Answer: The term magnetism comes from the region of Magnesia, a city in Western Turkey, where Greeks found lodestones, which attracted iron pieces across the space. It is also observed that, magnets attract as well as repel. We can explain this dual nature of magnetic force by proposing that each magnet has two poles, north pole (N) and south pole (S). You will observe two things during the activities:
1) When two magnets are brought near each other, like poles repel; opposite poles attract.
2) When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.
hope this helps u stay safe
Measure the distance between the first P wave and the first S wave. The middle point is the epicenter