2 years ago

What is carbon dating?

2 answers:

8 0

The first one a scientific way of finding the age of something that is very old (such as a dinosaur bone) by measuring the amount of certain forms of carbon in it

ratelena [41]2 years ago

7 0

Answer:

Im pretty sure its number 2

Explanation:

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An electron moving with a velocity = 5.0 × 107 m/s enters a region of space where perpendicular electric and a magnetic fields a

Cloud [144]

Answer:

magnetic field will allow the electron to go through 2 x $10^{4}$ T k

Explanation:

Given data in question

velocity = 5.0 × $10^{7}$

electric filed = $10^{4}$

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

$10^{4}j$ + 5e + 7i × B = 0