Suppose you are investigating how the day ends hamsters affect how much they run on the hamster wheel. In order to control the e
xperiment which of these should you do?
A. Change only the diet of each hampster.
B. Give all the hamsters the exact same diet.
C. Only allow some hampsters to run on the wheel.
D. Compare the behavior of hamsters and gerbils
A. Change only the diet of each hampster.
B. Give all the hamsters the exact same diet.
C. Only allow some hampsters to run on the wheel.
D. Compare the behavior of hamsters and gerbils
2 answers:
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Answer:
option (B)
Explanation:
Young's modulus is defined as the ratio of longitudinal stress to the longitudinal strain.
Its unit is N/m².
The formula for the Young's modulus is given by
where, F is the force applied on a rod, L is the initial length of the rod, ΔL is the change in length of the rod as the force is applied, A is the area of crossection of the rod.
It is the property of material of solid. So, when the 10 wires are co joined together to form a new wire of length 10 L, the material remains same so the young' modulus remains same.