Argon come from the air. It is a noble gas present in atmosphere. The percentage of argon in air is about 0.93%. Naturally, it is a colorless and odorless gas. When electrifies it gives a blue-green glow. Argon laser is used in field of medicine and surgery.
Answer:
56 m/s
Explanation:
The time we are considering is
t = 15 s
The vertical velocity of the projectile is given by
where
is the initial vertical velocity
is the acceleration due to gravity
Substituting t=15 s, we find the vertical velocity of the projectile at that time:
where the negative sign means the direction is now downward.
The horizontal velocity does not change since there are no forces acting along that direction, so it remains constant:
So, the magnitude of the velocity at the moment of impact is
The oscillation angular frequency of a drop with half of the first drop's radius is 4ω
<h3>What is surface tension?</h3>
Surface tension is the tension force exerted on an object by the surface of a liquid.
<h3>What is angular frequency?</h3>
Angular frequency is the frequency of oscillation of a rotating object. It is given in rad/s.
<h3>What is the oscillation angular frequency of a drop with half of the first drop's radius?</h3>
Given that
- the angular frequency of the drop is ω and
- radius r.
Since the energy of the drop is conserved, using the law of conservation of angular momentum, we have
Iω = I'ω' where
- I = initial rotational inertia of droplet = mr²
- where m = mass of drop and
- r = initial radius of droplet,
- ω = initial angular frequency of droplet,
- I' = initial rotational inertia of droplet = mr² where
- m = mass of drop and
- r' = final radius of droplet, and
- ω = final angular frequency of droplet
So, Iω = I'ω'
Making ω' subject of the formula, we have
ω' = Iω/I'
ω' = mr²ω/mr'²
ω' = r²ω/r'²
Given that the drop is half of the first drop's radius, r' = r/2
So, ω' = r²ω/r'²
ω' = r²ω/(r/2)²
ω' = r²ω/r²/4
ω' = 4ω
So, the oscillation angular frequency of a drop with half of the first drop's radius is 4ω
Learn more about angular frequency here:
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The gravitational potential energy of the mass in increased approximately by 490 J
Gravitational Potential energy formula is
P=mgh
where mass is given my m= 5 Kg
g is the gravitational force i.e. 9.8 
h is the height above the ground that is given by 10 m
P = 5*9.8*10
P = 490 J
What is gravitational potential energy?
The potential energy that a huge item has in relation to another massive object due to gravity is known as gravitational energy or gravitational potential energy. When two objects descend toward one another, the potential energy associated with the gravitational field is released (transformed into kinetic energy).
To learn more about gravitational potential energy
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Answer:
HERPES CURE OR ANY DISEASES CONTACT_________________________ ROBINSONBUCLER ((G MAIL.)) COM ……………
Explanation:
