Answer:
the unit for ΔL/L is "unitless".
Explanation:
Given;
ΔL/L
by physics convection, the above parameters can be defined as;
delta L (ΔL) is change in length, with SI unit as meters (m),
L is the original length of the material, with SI unit as meters (m)
The ratio of the change in length to the original length has no unit since both units cancel out during the division.
This ratio (ΔL/L), is also called tensile strain and it has no unit.
Therefore, the unit for ΔL/L is "unitless".
The answer is true any machine which moves an object does produce work
That will depend on the units of the 3.0. We need to know if it's 3 feet, 3 yards, 3 meters, or 3 miles. Each one will have a different answer.
Answer:
volume of bubble is 2.736 cm³
Explanation:
given data
height h = 35 m
volume = 1.98 cm³ = 1.98 × m³
temperature t1 = 5.2°C
temperature t2 = 16.5°C
to find out
volume of the bubble
solution
first we find pressure depth 35 m
pressure = Pt + ρ × g × h ................1
here Pt is pressure at top = 1.013 × Pa and ρ density of water
put here value in equation 1
pressure = Pt + ρ × g × h
pressure = 1.013 × + 1000 × 9.8 × 35
pressure = 444300 Pa
so
from gas equation
p1×v1 / t1 = pt×v2 / t2
put here value
v2 = p1×v1×t1 / pt×t1
v2 = 444300× 1.98 × × 5.2 / ( 1.013 × × 16.5 )
v2 = 2.736 × m³
so volume of bubble is 2.736 cm³