The elastic energy stored in your tendons can contribute up to 35% of your energy needs when running. Sports scientists have stu
died the change in length of the knee extensor tendon in sprinters and nonathletes. They find (on average) that the sprinters tendons stretch 41 mm, while nonathletes' stretch only 33 mm. The spring constant for the tendon is the same for both groups, 33 N/mm. What is the difference in maximum stored energy between the sprinters and the nonathlethes?
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Answer:
After 12 seconds, the area enclosed by the ripple will be increasing rapidly at the rate of 1206.528 ft²/sec
Explanation:
Area of a circle = πr²
where;
r is the circle radius
Differentiate the area with respect to time.
dr/dt = 4 ft/sec
after 12 seconds, the radius becomes =
To obtain how rapidly is the area enclosed by the ripple increasing after 12 seconds, we calculate dA/dt
dA/dt = 1206.528 ft²/sec
Therefore, after 12 seconds, the area enclosed by the ripple will be increasing rapidly at the rate of 1206.528 ft²/sec
Answer:
The demand forecast for winter is 96.36 millions KWH
The demand forecast for spring is 145.08 millions KWH
The demand forecast for summer is 169.89 millions KWH
The demand forecast for fall is 73.08 millions KWH
Explanation:
Given that,
The demand trend line is
We need to calculate the demand forecast for winter
Using given formula
Put the value into the formula
We need to calculate the demand forecast for spring
Using given formula
Put the value into the formula
We need to calculate the demand forecast for summer
Using given formula
Put the value into the formula
We need to calculate the demand forecast for fall
Using given formula
Put the value into the formula
Hence, The demand forecast for winter is 96.36 millions KWH
The demand forecast for spring is 145.08 millions KWH
The demand forecast for summer is 169.89 millions KWH
The demand forecast for fall is 73.08 millions KWH