Force is (mass × acceleration) measured in Newton
Pressure is the 'force' per unit area measured in Newton/m^2 (pascal)
Answer:
The magnitude is 
The direction is the positive x axis
Explanation:
From the question we are told that
The electric field is E = 450 V/m in the negative y ‑direction
The speed of the proton is
in the positive z direction
Generally the overall force acting on the proton is mathematical represented as

Now for the beam of protons to continue un-deflected along its straight-line trajectory then 
So

=> 
Generally from unit vector cross product vector multiplication

So the direction of B (magnetic field must be in the positive x -axis )
So

=> 
=>
=>
=> 
=>
In series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits.
And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.
Option A and D
<u>Explanation:</u>
A circuit consists of number of passive and active devices in it. And depending upon the connections between the passive devices, the flow of current and potential drop across them will be specified.
Like if the passive devices are connected parallel to each other, the current flow through each device will vary but the voltage drop will be same. Similarly, if the passive devices are connected in series, then the current flow will be constant in the devices but the potential drop will vary.
Thus, in series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits. And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.
The answer is B. Transfer electrons
Another reason why cats hate water is attributed to their history. There is not much in a cat's background to recommend them for successful interactions with bodies of water, be it small or big. Cat's ancestors lived in dry arid places which means rivers or oceans weren't obstacles they had to face.
Hope this helps:)