Solar wind particles can be captured by the Earth's magnetosphere. When these particles spiral down along the magnetic field int
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Answer:
The magnitude of the acceleration of the car is 35.53 m/s²
Explanation:
Given;
acceleration of the truck, = 12.7 m/s²
mass of the truck, = 2490 kg
mass of the car, = 890 kg
let the acceleration of the car at the moment they collided =
Apply Newton's third law of motion;
Magnitude of force exerted by the truck = Magnitude of force exerted by the car.
The force exerted by the car occurs in the opposite direction.
Therefore, the magnitude of the acceleration of the car is 35.53 m/s²
Answer:
You will hear the note E₆
Explanation:
We know that:
Your speed = 88m/s
Original frequency = 1,046 Hz
Sound speed = 340 m/s
The Doppler effect says that:
Where:
f = original frequency
f' = new frequency
v = velocity of the sound wave
v0 = your velocity
vs = velocity of the source, in this case, the source is the diva, we assume that she does not move, so vs = 0.
Replacing the values that we know in the equation we have:
This frequency is close to the note E₆ (1,318.5 Hz)
Answer:
Difference in the angle of refraction = 0.3°
41.04° is the minimum angle of incidence.
Explanation:
Angle of incidence = 38.0°
For yellow light :
Using Snell's law as:
Where,
Θ₁ is the angle of incidence
Θ₂ is the angle of refraction
n₁ is the refractive index for yellow light which is 1.523
n₂ is the refractive index of air which is 1
So,
Angle of refraction for yellow light = sin⁻¹ 0.9377 = 69.67°.
For green light :
Using Snell's law as:
Where,
Θ₁ is the angle of incidence
Θ₂ is the angle of refraction
n₁ is the refractive index for green light which is 1.526
n₂ is the refractive index of air which is 1
So,
Angle of refraction for green light = sin⁻¹ 0.9395 = 69.97°.
The difference in the angle of refraction = 69.97° - 69.67° = 0.3°
Calculation of the critical angle for the yellow light for the total internal reflection to occur :
The formula for the critical angle is:
Where,
is the critical angle
is the refractive index of the refractive medium.
is the refractive index of the incident medium.
n₁ is the refractive index for yellow light which is 1.523 (incident medium)
n₂ is the refractive index of air which is 1 (refractive medium)
Applying in the formula as:
The critical angle is = sin⁻¹ 0.6566 = 41.04°