Answer:
The correct answer is d
Explanation:
In this exercise they ask us which statement is correct, for this we plan the solution of the problem, this is a Doppler effect problem, it is the frequency change due to the relative speed between the emitter and the receiver of sound.
The expression for the Doppler effect of a moving source is
f ’= (v / (v- + v_s) f
From this expression we see that if the speed the sound source is different from zero feels a change in the frequency.
The correct answer is d
The distance it traveled and the time that it took to travel that distance
The strong nuclear force is responsible for holding nuclei together
A projectile motion is characterized by a motion whose path is alike to that of an arc. It already has its derived equations. For the maximum height H and the maximum range R, the equations are:
H = v₀²sin²θ/2g ; R = v₀²sin(2θ)/g
As you can observe, they are almost alike. Since they both contain v₀²/g, let's isolate this term for both equations:
v₀²/g = 2H/sin²θ
v₀²/g = R/sin (2θ)
Equating both equations:
2H/sin²θ = R/sin (2θ)
H = Rsin²θ/2sin(2θ)
This is the equation that relates H to R.
Answer:
number of moles = 27.34 moles
the temperature of gas after it undergoes the isobaric expansion = 605 K
Explanation:
Given that:
V = 0.25 m³
P = 250 kPa
T = 275 K
V₂ = 0.55 m³
P₂ = 760 kPa
a)
Using ideal gas equation ; PV = nRT
b) To calculate the temperature of gas after it undergoes the isobaric expansion; we have:
