Answer:
The time for which the flashlight last is 5.23 hours.
Explanation:
Given that,
One AA battery in a flashlight stores 9400 J, E = 9400 J
Power consumed by the LED flashlight bulbs, P = 0.5 W
We need to find the time for which the flashlight last. The power of a device is given by the energy stored per unit time as :
t = 18800 seconds
or
Since, 1 hour = 3600 seconds
t = 5.23 hours
So, the time for which the flashlight last is 5.23 hours. Hence, this is the required solution.
I am 11 year old and I don't known the answer to this question
Answer:
I think you would need too time your friend and know how too divide that time by other racers to see how much faster she needs to get. I THINK.
<span> Let,
initial velocity = v m/sec,
Angle, x = 40 degrees,
horizontal-componant = v.cos(x) = 12 m/sec,
OR,
v = 12 / cos(40) = 12/0.766 = 15.67 meters/sec >================< ANSWER </span> Source(s): Fazaldin A <span> · 4 years ago </span>
Use equations of motion to get the correct answer!
