Answer:
magnetic field will allow the electron to go through 2 x 
T k
Explanation:
Given data in question
velocity = 5.0 × 
electric filed =
To find out
what magnetic field will allow the electron to go through, undeflected
solution
we know if electron move without deflection i.e. net force is zero on electron and we can say both electric and magnetic force equal in magnitude and opposite in directions
so we can also say
F(net) = Fe + Fb i.e. = 0
q V B + q E = 0
q will be cancel out
+ 5e + 7i × B = 0
B = 2 x T k
Answer B seems the most valid.
B. They are inspired by the needs of society.
(-,-)
when the ball is thrown upward, the ball experiences gravitational acceleration = 9.8 m/s² which is always downward.
So the velocity of ball starts decreasing and reaches 0 at highest point.
so, the velocity and acceleration are negative with respect to ball's direction of moving when the ball is going upward.
Answer:
666000000000 J
391764.71 N
Explanation:
u = Initial velocity
v = Final velocity
s = Displacement
Change in energy
Work done be the force is 666000000000 J
The magnitude of force is 391764.71 N
