The two spheres will expand equally since they are made of the same metal.
<h3>
What is volume expansivity?</h3>
Volume expansivity is the fractional increase in the volume of an object at a given temperature.
where;
- γ is cubic expansivity
- ΔT is change in temperature
The cubic expansivity of the two spheres is same since they are of same metal.
Thus, the two spheres will expand equally since they are made of the same metal.
Learn more about cubic expansivity here: brainly.com/question/19630660
#SPJ1
I think its the green slime, im like 80% sure its the green slime because it stays the same throughout the whole experiment.
Answer:
15 N and 3.061
Explanation:
From the question,
The minimum force of friction to keep the book from sliding = 15 N.
using
F = mgμ................. Equation 1
Where F = Frictional Force, m = mass of the book, g = acceleration due to gravity, μ = coefficient of friction.
make μ the subject of the equation
μ = F/mg............... Equation 2
Given: F = 15 N, m = 0.5 kg, g = 9.8 m/s²
Substitute into equation 2
μ = 15(0.5×9.8)
μ = 15/4.9
μ = 3.061
Hence the coefficient of friction to keep the book from sliding = 3.061
Answer:
0.304 m/s2
Explanation:
If the first child is pushing with a force of 69N to the right and the 2nd child is pushing with a force of 91N to the left. Then the net pushing force is 91 - 69 = 22 N to the left. Subtracted by 15N friction force then the system of interest is subjected to F = 7 N net force tot he left.
We can use Newton's 2nd law to calculate the net acceleration of the system
