Answer:
the names.
Explanation:
they have different from my point of view but thats it
Answer:
The initial velocity of the bullet is 1066.63 m/s
Explanation:
The problem involves two different events: A collision between two objects and the stretching of a spring
Since we know the final condition of the system, we start from the end and back to the initial condition
The system of the bullet+block with mass= 4Kg+8gr = 4.008 Kg stretches the spring a distance of x=0.087 m
The work done when stretching a spring of constant k is
This work is equivalent to the change of potential energy of the spring, which is the result of the transformation of the kinetic energy of the total mass of the system
Solving for v' (the velocity of the system after the collision took place)
This is the resulting velocity after the bullet lodged into the block. That event complies with the law of conservation of linear momentum
Since the block is initially at rest ()
Solving for :
The initial velocity of the bullet is 1066.63 m/s
The medium whose light have the longest wavelength is air.
<h3>What is wavelength?</h3>
The wavelength is the distance between the adjacent crest or trough of the sinusoidal wave. The wavelength is the reciprocal of the frequency of the wave.
Wavelength λ = v/f
where v is the speed of wave in medium.
Given is the chart shows the speed at which light travels through different media.
Medium Speed of light in m/s
Water 2.25 x 10⁸
Air 2.99 x 10⁸
Glass 1.97 x 10⁸
Diamond 1.24 x 10⁸
The speed of light is directly proportional to the wavelength. Greater the speed, greater will be the wavelength.
From the chart, air has the highest speed of light.
Thus, the medium whose light have the longest wavelength is air.
Learn more about wavelength.
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