1) A marble, rolling with speed 20 cm/s, rolls off the edge of a table that is 80 cm high.
(a) How long does it take to drop to the floor?
(b) How far, horizontally, from the table edge does the marble strike the floor?
I believe the answer is coal
Wavelength goes with- the distance between
amplitude- the height
frequency- the number of cycles. I just answered this on plato and got it right.
Answer:
Acceleration, 
Explanation:
It is given that,
Side of the square plate, l = 1 m
Charge on the square plate, 
Position of a proton, x = 1 cm
The electric field due to a parallel plate is given by :

Electric force is given by :
F = q E

e is the charge on electron
The acceleration of the proton can be calculated as :

m is the mass of proton



So, the acceleration of the proton is
. Hence, this is the required solution.