The applicable equation:
P = F/A
P = pressure
F = Force or weight
A = surface area
Pressure on each cylinder = (W/n)/A
Where n = number of cylinders. Additionally, pressure in the reservoir is equivalent to the pressure in each cylinder.
Net pressure = 75 - 14.7 = 60.3 psi
Therefore,
60.3 = (W/n)/A = (450/n)/(πD^2/4) = (450/n)/(π*1.5^2/4) = (450/n)/(1.7671)
60.3*1.7671 = 450/n
106.03 = 450/n
n = 450/106.3 = 4.244 ≈ 5
The number of cylinders is 5.
Answer:
e) True Yes both are constant
Explanation:
Let us propose the solution of the problem before reviewing the statements, we use Newton's second law
F - fr = m a
N- W = 0
N = mg
The equation for the force of friction is
fr = μ N
F - μ mg = m a
F = m (a- μ g)
Now let's review the claims
.a) False. Normal force and friction are constants.
.b) False. Both are constant.
.c) False. Both are constant.
d.) False
e) True Yes both are constant
Answer:
20.8g/cm³
Explanation:
Esta es la forma en inglés de la pregunta.
"Si una sustancia de 52 gramos de masa tiene un volumen de 2.5 cm³, ¿cuál es la densidad de la masa?"
La densidad se define como la relación entre la masa de una sustancia y su unidad de volumen.
Densidad = Masa / Volumen
Masa dada = 52 gramos
Volumen = 2.5cm³
Densidad = 52 / 2.5
Densidad de la sustancia = 20.8g / cm³
The answer you are looking for is false
