Answer:
53/14
Explanation:
average acceleration = (Vfinal -Vintial)/ time taken
Answer:
I have no clue I'm just trying to get points
Explanation:
:) sorry
Variables:
Source charge, Q = 3 micro C = 3 * 10^ - 6 C
E = electric field = 2.86 * 10 ^5 N/C
K = 8.99 * 10^9 N * m^2 / C
d = distance = ?
Formula:
E = K * Q / (d^2) => d^2 = K * Q / E
=> d^2 = 8.99 * 10^9 N * m^2 / C * 3 * 10^ -6 C / (2.86 * 10^ 5 N/C)
d^2 = 9.43 * 10 ^ -2 m^2
=> d = 3.07 * 10^-1 m
Answer: 0.307 m
Note: it is a long distance due to the Electric field is very low
C. Use a longer wrench, this is because it would create a greater turning moment as moment=force*distance
Average force is 666.67 N
<u>Explanation:</u>
Given that :
m = Mass of the baseball = 0.2 kg
u = Initial velocity = 20 m/s
v = Final velocity = 40 m/s
t = Time taken for change in velocity = 0.006 s
We know:
Force exerted = mass × acceleration = m ×a
Acceleration can be found by means of dividing the change in velocity measured in m/s by the time taken in seconds.
a =
=
m/s²
Now we have to find the force using the formula, F = mass × acceleration as,
F = 0.2 kg ×3333.3 ms⁻² = 666.67 N