Answer:
a). 59.049°C
b). 2.1179 seconds
Step-by-step explanation:
Expression representing the final temperature after decrease in temperature of the metal from 100°C to T°C is,
T = 
where x = duration of cooling
a). Temperature when x = 5 seconds
T = 100(0.9)⁵
= 59.049
≈ 59.049°C
b). If the temperature of the metal decreases from 100°C to 80°C
Which means for T = 80°C we have to calculate the duration of cooling 'x' seconds
80 = 
0.8 = 
By taking log on both the sides
log(0.8) =log[
]
-0.09691 = x[log(0.9)]
-0.09691 = -0.045757x
x = 
x = 2.1179
x ≈ 2.1179 seconds
Answer:
If i was smart enough to answer this question i would help you but until then i am happy eating my mcnuggets (obviously 20 pack).
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Given:</u>
Area of the base :
Height of cylinder:
<u>The volume is:</u>
- V = Bh
- V = 50.24*3 = 150.72 ft³
Answer:
x = 25
Step-by-step explanation:
50 + 2x = 100
=> 2x = 50
=> x = 25
Hoped this helped.