You haven't told us the "wattage" rating of the bulb. We'll just have to call it ' W ' .
The bulb uses energy at the rate of W watts, or 0.001W kilowatts.
In 12 hours, it uses <em>0.012W kilowatt-hours </em>of energy.
= = = = =
W watts = W Joules/second
1 hour = 3600 seconds
12 hours = (12 x 3600) seconds
Energy = (W Joule/sec) x (12 x 3600 sec)
<em>Energy = 43,200W Joules</em>
Answer:
It fell down
Explanation:
Because its heavy. The gravity pull down the stone into the ground
What is the distance between two compressions called? The distance between two consecutive compressions or rarefactions in a wave is called wavelength.
Answer:
Amy's average speed is equal to Chris's average speed.
Explanation:
Average speed is the ratio of total distance and total time interval
So here for Amy we know that
now the average speed of Amy is given as
Similarly for Chris we will have
average speed = 
so correct answer is
Amy's average speed is equal to Chris's average speed.
For number one, use the equation of v= v initial+ at. Use v initial as zero for this situation and 9.8 m/s^2 as the acceleration due to gravity
