Answer:
Negative
Explanation:
Liquid electrolyte inside battery has work to transfer the charge from one terminal to other terminal..
So here this is carried out by the charge which has more mobility and it must be more in numbers.
So here for more mobility we have to take the negative charge or free electrons present in the electrolyte which carry electricity from one terminal to other terminal with least resistance
so here correct answer would be
b.) Negative
Answer:
<em>20m/s</em>
Explanation:
Given
Velocity = 40m/s
angle = 30°
Vertical component = Vsin theta
Substitute into the formula
Vy = 40sin30
Vy = 40(0.5)
Vy = 20m/s
<em>Hence the vertical component of the velocity right before the ball hits the ground is 20m/s</em>