Answer:
r₂ = 4.43 r₁
Explanation:
To solve this exercise we must use Pascal's principle that the pressure at a point at a given depth is constant regardless of the body shape.
Let's use index 1 for the smallest plate and index 2 for the largest plate.
P₁ = P₂
pressure is defined
P = F / A
F₁ / A₁ = F₂ / A₂
A₂ / A₁ = F₂ / F₁
They indicate F1 = 40 N and the mass on the large plate is m₂ = 80kg
therefore the body weight is
W₂ = F₂ = m₂g
we substitute
A₂ / A₁ = m₂ g / F₁
A₂ / A₁ = 80 9.8 / 40
A₂ / A₁ = 19.6
the dishes are generally circular
A = π r²
A₂ / A₁ = π r₂² / π r₁²
A₂ / A₁ = (r₂ / r₁)²
we substitute
(r₂ / r₁)² = 19.6
r₂ / r₁ = √19.6 = 4.43
r₂ = 4.43 r₁
I really hope this is true. also pay no attention to this answer I'm doing it to finish my account
The tendency of an object to resist any change in its motion is called inertia
The divisions within an atom's shell are called subshells. This means that each shell consists of several subshells that are made up of orbitals. Each orbital consists of 1 or 2 electrons. The outermost shell of an atom is what we call the valence electrons, and they are what participate in chemical bonding.
Answer:
10 m/s
Explanation:
Velocity = frequency * wavelength
Velocity = 2.5 * 4
Velocity = 10 m/s