Answer:
9.98 × 10⁻⁹ C
Explanation:
 mass, m = 1.00 × 10⁻¹¹ kg
Velocity, v = 23.0 m/s
Length of plates D₀ = 1.80 cm = 0.018 m
Magnitude of electric field, E = 8.20 × 10⁴ N/C 
drop is to be deflected a distance d = 0.290 mm = 0.290 × 10⁻³ m
density of the ink drop = 1000 kg/m^3
Now,
Time =  
or
Time =  
or
Time = 6.9 × 10⁻⁴ s
Now, force due to the electric field, F = q × E
where, q is the charge 
Also, Force = Mass × acceleration
q × E = 1.00 × 10⁻¹¹ × a
or
a =  
Now from the Newton's equation of motion
 
where,  
d is the distance
u is the initial speed  
a is the acceleration
t is the time
or
 
or
q = 9.98 × 10⁻⁹ C
 
        
             
        
        
        
Answer:
1/4 times your earth's weight
Explanation:
assuming the Mass of earth = M
Radius of earth = R
∴ the mass of the planet= 4M
the radius of the planet = 4R
gravitational force of earth is given as = 
where G is the gravitational constant
Gravitational force of the planet = 
                                                        =
                                                        =
recall, gravitational force of earth is given as = 
∴Gravitational force of planet = 1/4 times the gravitational force of the earth
you would weigh 1/4 times your earth's weight
 
        
             
        
        
        
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