What is Marie's instantaneous speed at 20 minutes in miles/min?
1 answer:
Answer:
0.25miles/min
Explanation:
Instantaneous speed of a person or an object is its speed at a particular moment usually at a period of time.
The speedometer of a car reports the instantaneous speed.
It can be mathematically expressed as;
Instantaneous speed =
At 20min the distance covered is 5miles;
Instantaneous speed = = 0.25miles/min
You might be interested in
Answer:
ZAMN
Explanation:
Answer:
b. 0.034
Explanation:
The heat transfer coefficient of a material (U-value) is equal to the reciprocal of its R-value, therefore:
where
R is the R-value of the material
For the insulator in this problem,
R = 29
Substituting into the equation, we find the heat transfer coefficient: