THE DOPPLER EFFECT. Anyways, it would have a higher whistle as it approaches you, when it gets to you it only gets quieter because it leaves after. Think of a motorcycle going by, its loud coming to you then as it passes it gets quieter.
Answer:
1.75 kW
Explanation:
First, the rate at which work is done is simply termed Power
m = 35kg
v = 5.0 m/s
since the undergoes a vertical motion g = 10 m/s²
F = W = mg = 35×10 = 350 N
Power = Fv = 350×5 = 1750 Watt
Answer: A north pole and a south pole
Explanation: All magnets no matter how big or small they are will always have poles. All magnets have two regions of magnetic strength where they are the strongest. Even if I cut a magnet in half, it would still have poles.
It's important to understand that there like poles repel each other and opposites attract.
Energy and momentum are always conserved. Kinetic energy is not conserved in an inelastic collision though. And that is because it is converted to another form of energy
Answer:
1. 1.568 x 10^6 N m^2 / C
2. - 1.568 x 10^6 N m^2 / C
Explanation:
E = 4.9 x 10^4 N/C
Side of square, a = 8 m
Area, A = side x side = 8 x 8 = 64 m^2
Angle between lane of sheet and electric field = 30°
Angle between the normal of plane of sheet and electric field,
θ = 90°- 30° = 60°
The formula for the electric flux is given by
(1)
By substituting the values, we get
Ф = 4.9 x 10^4 x 64 x Cos 60 = 1.568 x 10^6 N m^2 / C
(2)
By substituting the values, we get
Ф = - 4.9 x 10^4 x 64 x Cos 60 = - 1.568 x 10^6 N m^2 / C