How does lemon produce electricity
1 answer:
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A proton is initially moving at high speed
so here initially proton is having high speed and high kinetic energy
now this proton comes to rest by external electric field
so the potential energy of proton will increase or we can say that kinetic energy will convert into electrostatic potential energy
so here the proton must have to move at higher potential region
so here correct answer must be
b. Because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential.
Answer:
u = 29.22 m/s
Explanation:
distance (s) = 58.52 m
coefficient of kinetic friction (k) = 0.75
final velocity (v) = 0 m/s
acceleration due to gravity (g) = 9.8 m/s^{2}
How fast was she driving (u)
we can get how fast she was driving by using the formula below
s = ut - ...equation 1
where
- s = distance
- u = her initial velocity
- a = acceleration =
- k = coefficient of kinetic friction
- g = acceleration due to gravity
- t = time
from v = u - at (recall that v = 0)
0 = u - at, therefore t = u/a = u/kg
now substituting the required values above into equation 1 we have
s =
s =
u =
u =
u = 29.22 m/s