Answer:
a) F = - 6.75 10³ N, b) F = 1.35 10⁶ N
Explanation:
To calculate the force we can use the relation between the impulse and the moment
I = Δp
F t = m - m v₀
v_{f} = 0
F = -m v₀ / t
To calculate the time, let's use kinematics
a) Passenger with seat belt and airbag, braking distance x = 1 m
v² = v₀² - 2 a x
a = v₀² / 2x
a = 15²/2 1
a = 112.5 m / s²
v = v₀ - a t
t = v₀ / a
t = 15 / 112.5
t = 0.1333 s
Let's find the average strength
F = - 60 15 / 0.1333
F = -6750 N
F = -6.75 10³ N
b) Passenger without seat belt or airbag braking distance x = 5 mm = 0.005 m
a = v₀² / 2x
a = 15²/2 0.005
a = 22,500 m / s²
t = v₀ / a
t = 15/22500
t = 6.6667 10⁻⁴ s
The average strength is
F = - 60 15 / 6.6667 10⁻⁴
F = 1.35 10⁶ N
Im not 100% sure but i think its bromine.
Hope this helps ^_^
A shuttle stays in orbit because of the gravitational pull of earth its just like how the moon is able to orbit the earth
Your answer is B. hope this helps
The answer is λ₂ = 6.48 cm or 6.52 cm.
The out-of-tune guitar may have a wavelength between "6.48 cm" and "6.52 cm."
fb = |f2 − f1|
f₁ = 343/0.064
= 5276Hz
f₂ = 5276.9 Hz ± 17 Hz
f₂ = 5293.9 Hz or 5259.9 Hz
Now, calculating the possible wavelengths:
λ = 343/ 5259.9 or 343/ 5293.9
λ₂ = 6.48 cm or 6.52 cm
<h3>Why is beat frequency important?</h3>
When two waves with almost identical frequencies traveling in the same direction collide at a certain location, beats are produced. The opposing beneficial and harmful disruption causes the sound to alternatively be loud and weak whenever two sound waves with different frequencies reach your ear. This is referred to as beating.
The entire value of the frequency difference between the two waves is the beat frequency.
The following formula yields the beat frequency:
fb = |f2 − f1|
Learn more about beat frequency here:
brainly.com/question/14705053
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