-- The greatest common factor of 2525 and 3535 is 5.
-- So the greatest possible number of teams is 5.
-- Each of the five teams will have 505 girls and 707 boys.
-- Rafaela is a superwoman ! She's handling more kids in that class than there were in my whole high school !
She has 6,060 students in her class, so I'm not surprised that she wants to divide the class up into smaller groups.
But come on ! She's going to form 5 teams, and she thinks that her job will be easier that way, because each team will have 'only' 1,212 students on it !
And these are all in one class ! If Rafaela is a physical education teacher, then SURELY she's teaching more than one class !
Or maybe not. I'll betcha whenever Rafaela is teaching her physical education class, all the other teachers are taking it easy, because Rafaela is responsible for every student in the school that hour.
And possibly several OTHER schools in town too.
Answer:
correct answer is d
The pinhole has a size comparable with the laser wavelength, so the pinhole diffracts the passing laser beam.
Explanation:
The researcher does not have a refraction problem since the medium on both sides of the pinhole is the same with the same refractive index, the problem he is having is with the diffraction of the laser beam through the pinhole, let's analyze the diffraction process that is described by the expression
a sin θ = m λ
where a is the pinlole size, λ the wavelength of the laser and m an integer.
The laser extends from the maximum of diffraction to the first zero (m = 1) of diffraction
sin θ = λ/a
when analyzing this expression we have some interesting cases
* when λ « a. the sine approaches zero therefore we are in the case of optical geometry, in this case the laser passes through the hole without being diffracted
* when λ ≈ a. the sine function has values between 0 and 1, for which a diffraction of the laser beam occurs, which increases the diameter of the same
* when λ> a. The laser does not pass through the gap since the sine cannot have values greater than 1
After this analysis, we review the answers to the exercise to find that the correct answer is d
In collision of the steel ball and the steel plate, the collision is an inelastic collision and there is loss in the kinetic energy.
<h3>What are collisions?</h3>
Collisions occur when two objects that are moving in the same directions or in different direction meet each other and collide.
There are two types of collisions:
- elastic collision - the kinetic energy is conserved
- inelastic collision - there is a loss in kinetic energy
In the collision of the steel ball and the steel plate, there is loss in the kinetic energy of the steel ball which is converted to sound energy.
In conclusion, the collision of the steel and steel plate is an inelastic collision.
Learn more about collisions at: brainly.com/question/7694106
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The frequency of the wave is the frequency of that sine function ... 2,000π ... but that's the <u>angular </u>frequency, in radians per second.
To convert angular frequency to Hz, we have to divide by 2π.
So the frequency of this wave is <em>1,000 Hz. </em>
Action: you muscles exert force that acts on the bunching bag. The bag on the other hand exerts force of reaction directed in a same line with the force exerted by your fist.
The basketball acts on the rack with force of its weight (in this case we can say it equals basketball's force of gravity), and the rack acts on the ball with the normal force.