C) both moving and non-moving objects
As, it is same as the Newton's first law motion
A reaction between two pure solids is very rare. For a reaction to occur, the molecules must interact with each other. Since molecules of solids are very compact, they don't have the liberty to collide with one another. However, this is made possible by hydrates of solids. An examples would be CuSO₄·5H₂O. In this case, they have a an intermediate liquid to react them together.
Answer:
D
Explanation:
A is wrong bc best DNA will survive
B is wrong because organism adapt not only for food source but to be able to live in the environment as well
C is wrong because single celled organisms don't adapt
Can you get a better pic so i can read it
Answer:
A. T₁ = 7.204 N
B. T₂ = 19.07 N
C. I = 0.011979 kg * m²
Explanation:
Given
m₁ = 2.02 kg , d = 0.120 m, m₂ = 3.06 kg, s = 1.17 m, t = 0.810s
The tension can be find using the conserved energy in each axis so:
∑Fₓ = T₁ = m₁ * a₁
∑Fy = m₂ * g - T₂ = m₂ * a₁
Now to find the acceleration can use the equation of Newton motion
s = v₁* t + ¹/₂ * a₁ * t ²
Solve to a'
a₁ = 2* s / t ² = 2 * 1.17 m / (0.810 s)²
a₁ = 3.566 m/s²
A).
T₁ = m₁ * a₁ = T₁ = 2.02 kg * 3.566 m/s²
T₁ = 7.204 N
B).
T₂ = m₂ *(g - a₁) = 3.06 kg *(9.8 - 3.566) m/s²
T₂ = 19.07 N
C).
Finally to find the moment of inertia use the equation
∑ T = (T₂ - T₁) * r = I * α
α = a₁ / r
I = (T₂ - T₁ )* r²/ a₁
I = ( 19.07 - 7.204)* (0.06 m)² / 3.566 m/s²
I = 0.011979 kg * m²