Answer:
F₁ = F₂ = F₃ = 0 N
Explanation:
given,
Arrow 1 mass = 80 g speed = 10 m/s
Arrow 2 mass = 80 g speed = 9 m/s
Arrow 3 mass = 90 g speed = 9 m/s
Horizontal Force:- F₁ , F₂ and F₃
There is no air resistance.
If Air resistance is zero then the horizontal acceleration of the arrow also equal to zero.
We know,
According to newton's second law
F = m a
If Acceleration is equal to zero
Then Force is also equal to zero.
Hence, F₁ = F₂ = F₃ = 0 N
Answer:
Explanation:
We have the following relation between power, P and intensity, I
= 
= 
We also have the following relationship between electric field and electromagnetic radiation thus
Hence 
substituting the values of I, c and e, we have
Answer:
The value of the linear coefficient of thermal expansion is : α=1.01 *10⁻⁵ (ºC)⁻¹
Explanation:
Li = 0.2m
ΔL = 0.2 mm = 0.0002m
T1 = 21ºC
T2 = 120ºC
ΔT =99ºC
α =ΔL/(Li*ΔT)
α =0.0002m /(0.2m * 99ºC)
α = 1.01 *10⁻⁵ (ºC)⁻¹
The answer is:
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"sensors"
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"<span>Monitoring systems may also use ___<u>sensors</u>___, which are devices that respond to a stimulus (such as heat, light, or pressure) and generate an electrical signal that can be measured or interpreted."
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Answer:
The width of slide is 0.092 mm.
Explanation:
Given that,
Wave length = 680 nm
Distance between slit and screen D= 5.4 m
Distance of bright band 2y = 7.9 cm
We need to calculate the width of slide
Using formula of width
Where, d = width
D =Distance between slit and screen
y = Distance of bright band
Put the value into the formula
Hence, The width of slide is 0.092 mm.
