Author Question: The cost of running a set of eight 100 watt light bulbs for 6 hours, with the cost of electricity at ... (Read 130 times)

clippers! · **on:** Jul 28, 2018

The cost of running a set of eight 100 watt light bulbs for 6 hours, with the cost of electricity at 9 per kWh, is approximately:
a. 5 b. 24 c. 43 d. 54 e. 72

Question 2

A baseball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.0 s after being hit. And 2.5 s after reaching this maximum height, the ball is observed to barely clear a fence that is 97.5 m from where it was hit. How high is the fence?
a. 8.2 m
b. 15.8 m
c. 13.5 m
d. 11.0 m
e. 4.9 m