Answer:
The force will be attractive.
Explanation:
Since we the sum of the charges is 0 they must have opposite charges and equal magnitudes.
And Opposite charges are attaractive towards each other.
Answer:
The voltage drop through which the proton moves is 39.1 V.
Explanation:
Given that,
Distance = 4.76 cm
Time 
We need to calculate the acceleration
Using equation of motion

Where, s = distance
a = acceleration
t = time
Put the value in the equation



We need to calculate the voltage drop
Using formula of electric field

....(I)
Using newton's second law
....(II)
Put the value of F in equation (I) from equation (II)


Where, q = charge
a = acceleration
d = distance
m= mass of proton
Put the value into the formula


Hence, The voltage drop through which the proton moves is 39.1 V.
Net force is the vector sum of forces acting on a particle or body. The net force is a single force that replaces the effect of the original forces on the particle's motion. It gives the particle the same acceleration as all those actual forces together as described by the Newton's second law of motion.
Answer:
option D
Explanation:
also to add.... there exists a solubility equilibrium between solid solute and the solution.
Answer:
E) 80 N/m
Explanation:
Given;
mass of the block, m = 4.8 kg
displacement of the block, x = -0.5 m
velocity of the block, v = -0.8 m/s
acceleration of the block, a = 8.3 m/s²
From Newton's second law of motion;
F = ma
Also, from Hook's law;
F = -Kx
where;
k is the force constant
Thus, ma = -kx
k = -ma/x
k = -(4.8 x 8.3) / (-0.5)
k = 79.7 N/m
k ≅ 80 N/m
Therefore, the force constant of the spring is closest to 80 N/m