Work done = force * distance
work done = 200 * 20
work done = 4000J
Answer:
I think the answer is A
Explanation:
I need this brainliest answer please
The formula for kinetic energy is
KE = (1/2) (mass) (speed)² .
How you measure the object's mass and speed is up to you.
You'd need different methods for different objects, and in some
cases, you'd need quite a bit of ingenuity.
Using the equation v(average)=x traveled/time
v = 100/2.5
You get 40 kilometers per hour
Hope this helped!
Answer: 168.75 N
Explanation:
first, let's convert microcoulombs to coulombs
q1 = 1e-4 C
q2 = 3e-5 C
r = 0.4 m
then use the equation Fe =
plug in values --> F = (9e9*1e-4*3e-5)/(0.4)^2
F = 168.75 N