Answer:
Scientific definitions for ferromagnetic
The property of being strongly attracted to either pole of a magnet. Ferromagnetic materials, such as iron, contain unpaired electrons, each with a small magnetic field of its own, that align readily with each other in response to an external magnetic field.
Explanation:
Answer:
Disruption to electricity power grid
Explanation:
We're looking a a solar flare. This will whip solar particles at high velocity into space and, If they are near earth, will interact with the earth's magnetic field. These magnetic changes will be measurable in the electric grid. Whether they are strong enough to cause "disruption" depends on a huge number of factors such as strength of and angles of the interacting magnetic fields and location of grid infrastructure,
Prior to determining the
experimental design, a scientist typically forms a hypothesis. The answer is
letter B. this is to prepare the scientist, the possible outcome of their
research before the experimental design whether they are wrong or not.
Answer:
A) The speed of the water must be 8.30 m/s.
B) Total kinetic energy created by this maneuver is 70.12 Joules.
Explanation:
A) Mass of squid with water = 6.50 kg
Mass of water in squid cavuty = 1.55 kg
Mass of squid = ![m_1=6.50 kg- 1.55 kg=4.95 kg](https://tex.z-dn.net/?f=m_1%3D6.50%20kg-%201.55%20kg%3D4.95%20kg)
Velocity achieved by squid = ![v_1=2.60 m/s](https://tex.z-dn.net/?f=v_1%3D2.60%20m%2Fs)
Momentum gained by squid = ![P=m_1v_1](https://tex.z-dn.net/?f=P%3Dm_1v_1)
Mass of water = ![m_2=1.55 kg](https://tex.z-dn.net/?f=m_2%3D1.55%20kg)
Velocity by which water was released by squid = ![v_2](https://tex.z-dn.net/?f=v_2)
Momentum gained by water but in opposite direction = ![P'=m_2v_2](https://tex.z-dn.net/?f=P%27%3Dm_2v_2)
P = P'
![m_1v_1=m_2v_2](https://tex.z-dn.net/?f=m_1v_1%3Dm_2v_2)
![v_2=\frac{m_1v_1}{m_2}=\frac{4.95 kg\times 2.60 m/s}{1.55 kg}=8.30 m/s](https://tex.z-dn.net/?f=v_2%3D%5Cfrac%7Bm_1v_1%7D%7Bm_2%7D%3D%5Cfrac%7B4.95%20kg%5Ctimes%202.60%20m%2Fs%7D%7B1.55%20kg%7D%3D8.30%20m%2Fs)
B) Kinetic energy does the squid create by this maneuver:
Kinetic energy of squid = K.E =![\frac{1}{2}m_1v_1^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dm_1v_1%5E%7B2%7D)
Kinetic energy of water = K.E' = ![\frac{1}{2}m_2v_2^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dm_2v_2%5E%7B2%7D)
Total kinetic energy created by this maneuver:
![K.E+K.E'=\frac{1}{2}m_1v_1^{2}+\frac{1}{2}m_2v_2^{2}](https://tex.z-dn.net/?f=K.E%2BK.E%27%3D%5Cfrac%7B1%7D%7B2%7Dm_1v_1%5E%7B2%7D%2B%5Cfrac%7B1%7D%7B2%7Dm_2v_2%5E%7B2%7D)
![=\frac{1}{2}\times 4.95 kg\times (2.60 m/s)^2+\frac{1}{2}\times 1.55 kg\times (8.30 m/s)^2=70.12 Joules](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%204.95%20kg%5Ctimes%20%282.60%20m%2Fs%29%5E2%2B%5Cfrac%7B1%7D%7B2%7D%5Ctimes%201.55%20kg%5Ctimes%20%288.30%20m%2Fs%29%5E2%3D70.12%20Joules)