The force that every mass exerts on every other mass is called gravity. Gravity Gravity is what attracts a persons body towards the center of the Earth. The correct answer is A.
I can interpret this as it's somewhat of all of those, due to the fact that for one thing think of the earth it's a spinning ball of liquid iron, nickel due to one law stating hot liquid metal spinning around creates magnetic fields, ferro magnetic metals are ones such as magnetite which is a natural magnet, it can be found in nature theres a region in the gobi desert that will make a compass needle dance since its surrounded by magnetic rock, ferro magnetic atoms like iron, nickel are great at being and creating magnetic fields due to their ability to change from non magnetic to magnetic quickly and with different ways from inducing as in electromagnetic coils forcing atoms spinning differently to spin the same direction or changing the north south alignment. you can take a iron pipe and hit it with a hammer and after enough wacks the atomic structure will be disrupted and all the atoms line up in tightly compacted lines like grains in wood creating a stronger magnetic pull than if it was just a iron pipe. I hope that helps I like metaphors for understanding those kinds of concepts I hope that's helped.
Answer:
A, B and F are the right answers
Explanation:
The formula is 
A) Increasing both the radius and the speed by a factor of 9
=
<u><em>which means the acceleration will increase by a factor of 9</em></u>
B) Keeping the speed fixed and decreasing the radius by a factor of 9
=
<u><em>which means the acceleration will increase by a factor of 9</em></u>
C) Keeping the radius fixed and increasing the speed by a factor of 9
=
It will increase the acceleration 81 times
D) Keeping the speed fixed and increasing the radius by a factor of 9
=
It will decrease the acceleration by 9 times
E) decreasing both the radius and the speed by a factor of 9
=
It will decrease the acceleration by 9 times
F) Keeping the radius fixed and increasing the speed by a factor of 3
=
<u><em>It will increase the acceleration by 9 times </em></u>
Answer:you in connections too?
Explanation:
Answer:
F = 800 [N]
Explanation:
To be able to calculate this problem we must use the principle of momentum before and after the impact of the hammer.
We must summarize that after the impact the hammer does not move, therefore its speed is zero. In this way, we can propose the following equation.
ΣPbefore = ΣPafter

where:
m₁ = mass of the hammer = 0.15 [m/s]
v₁ = velocity of the hammer = 8 [m/s]
F = force [N] (units of Newtons)
t = time = 0.0015 [s]
v₂ = velocity of the hammer after the impact = 0
![(0.15*8)-(F*0.0015) = (0.15*0)\\F*0.0015 = 0.15*8\\F = 1.2/(0.0015)\\F = 800 [N]](https://tex.z-dn.net/?f=%280.15%2A8%29-%28F%2A0.0015%29%20%3D%20%280.15%2A0%29%5C%5CF%2A0.0015%20%3D%200.15%2A8%5C%5CF%20%3D%201.2%2F%280.0015%29%5C%5CF%20%3D%20800%20%5BN%5D)
Note: The force is taken as negative since it is exerted by the nail on the hammer and this force is directed in the opposite direction to the movement of the hammer.