A force of 18 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching i
1 answer:
You might be interested in
Answer:
It's 1.0000042 times longer in summer than in winter. It represents a 1.6 centimeters difference between seasons.
Explanation:
The linear coefficient of thermal expansion for steel is about . From the equation of linear thermal expansion, we have:
Taking the winter day as the initial, and the summer day as the final, we can take the relationship between them:
It means that the bridge is 1.0000042 times longer in summer than in winter. If we multiply it by the length of the bridge, we obtain that the difference is of about 1.6 centimeters between the two seasons.
Answer:
Explanation:
From the question we are told that
Distance
Time
Time
Generally the the equation for the distance traveled is mathematically given as
Generally equation for speed of side walk is mathematically given as