Answer: I only have the answer for A, but still, the answer is 20.07.
- Explanation: Because the number ends in a 15, round to the nearest tenth which is 20. So now the number is 5420.
- To get the Watts (W) you have to take 5420 and divide it by the time in seconds. 4.5 minutes in seconds is 270, so 5420 divided by 270 equals 20.07.
- So 20.07 is the answer.
Color, odor, melting point, boiling point
Answer:
the time is t = 7.45 s
Explanation:
In this problem we are going to suppose that the star halfback moved in a straight line. From that assumption we can say the following :
''He averaged 9.8 m/s ...'' so the average speed is 9.8 m/s
'' ... for an 80-yard (73 m) score'' so the distance is 73 m
There is an equation that relates average speed,distance and time in
straight line movements with constant acceleration
Average speed = Distance/time replacing the data
9.8 m/s = 73 m/t
t = 73 m/(9.8 m/s)
t = 7.44897 s = 7.45 s
Be aware to having the data in congruent units
For example : average speed (mi/h) ; distance (mi) and time (h)
Answer:
is it B to C?
I think thats it but I'm not 100 percent