Tommy and Zach are starting out at the same position. Tommy runs north at 5 miles per hour and Zach starts to run east 2 hours later at the rate of 8 miles per hour. How long until Tommy and Zach are 16 miles apart?

c

explanation:

i believe the answer is c and this is only worth 10 points you might wanna change it

it becomes positively charged by charging it

b.transmitters send radio waves, and receivers capture radio waves.

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000