Power = (voltage) x (current)
Divide each side by (voltage):
Current = (power) / (voltage)
I = (75) / 120 =<em> 0.625 Amperes</em> = 625 mA
Answer:
The gain in velocity is 0.37m/s
Explanation:
We need solve this problem though the conservation of momentum. That is,
Using the equation to find ,
Using the conservation of energy equation, we have,
Now this energy over the cannonball
The gain in velocity is 0.37m/s
By definition, we have that the speed is given by:
Where,
d: distance traveled
t: time to travel said distance
Substituting values we have:
Then, rounding the obtained speed we have:
Answer:
Kenneth's average speed is:
v = 4.8 mph
Answer:
A The shorter the wavelength the higher the frequency the longer the lower, hope this helps, thanks.