Answer:
3.84 erg
Explanation:
According to Hooke's law, the energy required to stretch a spring by x length is
where k is the spring constant. We can plug in E = 4 and x = 10 to estimate k
To stretch 4cm further (at 14cm), the total work required is
The additional work needed is 7.84 - 4 = 3.84 erg
The point has to be validated I believe
Density is a measurement that compares the amount of matter an object has to its volume. An object with a lot of matter in a certain amount of volume has high density. ... When water freezes, it makes ice that is less dense than liquid water.
Answer:
It will take 0.018 sec to complete 1.87 m
Explanation:
We have given speed of the nerve impulse in the nervous system is 10.3 m/sec
Distance traveled by nerve impulse s = 1.87 m
We have to find the time taken by nerve impulse to complete this distance
We know that time is ratio of distance traveled and average speed
So time taken by nerve impulse to compete 1.87 m will be equal to
So it will take 0.018 sec to complete 1.87 m