Answer:
A) electric field strength between the plates;E = 2 x 10^(6) N/C
B) exit velocity;v = 8.39 x 10^(7) m/s
Explanation:
We are given;
Potential difference; V = 20 kV = 20000 V
Distance between the 2 parallel plates; d = 1cm = 0.01 m
A) The electric field strength will be gotten from;
E = V/d
E = 20000/0.01
E = 2000000
E = 2 x 10^(6) N/C
B) For exit speed, we'll use the formula for Kinetic energy; KE = (1/2)mv²
KE is also expressed as; V•q_e
Thus,
(1/2)mv² = V•q_e
Where;
V is potential difference = 20000 V
Q_e is charge of electron which has a constant value of; (1.6 x 10^(-19))C
m is mass of electron with a constant value of (9.1 x 10^(-31)) kg
v is the velocity
Thus, making v the subject, we have;
v = √((2V•q_e)/m)
v = √((2 x 20000•(1.6 x 10^(-19)))/(9.1 x 10^(-31)))
v = 83862786 m/s or
v = 8.39 x 10^(7) m/s
<u>Combustion Reaction</u> :- it is a type of reaction where a compound and an oxidant is reacted to produce heat and new product .
Michael uses a car that burns fossil fuels : - Combustion reaction
<u>photosynthesis</u> :- the process use by green plants in which plants uses sunlight to convert carbon dioxide in to sugars that the cells can use as energy
Alan grow tomato in his farm :- photosynthesis
<u>Respiration</u> :- Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water
Lisa eats eggs in the basket :- respiration
The answer would be: B
Hope tis helps!
I personally don't (I can't speak for others tho) but I say right twix is better for the memes