Answer:
2.1406 ×
m/sec
Explanation:
we know that energy is always conserved
so from the law of energy conservation

here V is the potential difference
we know that mass of proton = 1.67×
kg
we have given speed =50000m/sec
so potential difference 
now mass of electron =9.11×
so for electron

so the velocity of electron will be 2.1406×
m/sec
Answer:
3a, 2b,4c,1d
Explanation:
what do I need to explain just something you know
What’s Brainlyest? Can you post a picture of the question or farther explain what (m>s) means?
If two forces act on an object in the same direction, the net force is equal to the sum of the two forces