1 gram is greater. 230 miligrams is equal to .230 grams
Answer:
I am pretty sure it is A!
:D
Acceleration = (change in speed) / (time for the change)
Change in speed = (speed at the end) - (speed at the beginning)
Change in speed = (54 km/hr) - (32 km/hr) = 22 km/hr
Acceleration = (22 km/hr) divided by (the time it takes to change the speed)
Spring potential energy:
E = 0.5 * k * x²
k spring constant
x spring compression
x = √(2 * E / k) = 0.7
Answer:
1.47*10^{-8}s
Explanation:
You first calculate the distance traveled by the electron:
Next, you calculate the relative speed as measure by an observer in the positron, of the electron:
with this relative velocity you calculate the time: