Answer:
B. Applied
Explanation:
Applied means that somethings is pushing directly into it like a person to a box. and well the reasons why the others are not contact force are because gravity its cause to an attraction to the planet and no matter where you are it will still attract you, electric is not because it can flow through air, magnetic it affects to an invisible field that even if its not torching the marital you can still feel the magnetic push or pull
So applied
Answer:
Hey There!
Let's solve...
I think your diagram must be similar to whatever i drew on attachment...
Now.....
Lets solve bigger block which is along vertical
Lets solve it horizontally
Final answer is just make fraction of that
so it is your answer.....
<h3>I hope it is helpful to you....</h3><h3>Cheers!___________</h3>
Answer:
Explanation:
Let m be the mass of Astronaut
M=mass of earth
G=Gravitational constant
R=radius of Earth
Force Exerted by Earth on Astronaut
acceleration due to gravity is
When it is at
The Lorentz force acting on the proton is:
(1)
where
q is the proton charge (
)
v is its speed (7.5 m/s)
B is the magnetic field intensity (1.7 T)
is the angle between the direction of v and B, and since the proton is travelling at right angle to the magnetic field,
and
, so we can ignore it.
The Lorentz force provides the centripetal force that keeps the proton in circular orbit. The centripetal force is
(2)
where
is the centripetal acceleration
m is the proton mass (
)
v is the proton speed
We said that the Lorentz force provides the centripetal force of the motion, so we can equalize (1) and (2) to find the radius of the proton's orbit:
Therefore now we can calculate the centripetal acceleration of the proton, which is given by