$0.080 per kWh
25W porch light
a day = 24hrs
365 days in a year = 8760hrs
1) convert 25W to kW
0.025kW in the porch light
2) kW in a year
0.025kW × 8760hrs = 219 kWh in a whole year
3) money
$0.080 × 219kWh = $17.52
Bella’s average velocity is about 0.693 meters per second.
To find the average velocity, you must divide the distance by the change in time, which should look like v=d/t
Here is how you set up the equation-
v=6.1/8.8
Once you divide 6.1 meters by 8.8 seconds, you should get a number that looks like 0.69318182.... however, I just rounded it to 0.693 meters per second. You can round it to whatever you like.
Hope this helped! If you have any questions about what I mentioned in my answer or explanation, feel free to comment on my answer and I’ll try to get back to you!
