The mechanism that is responsible for the formation of snowflakes is the nucleation of ice crystals.
<h3>What is a Snowflake?</h3>
This is defined as a piece of snow which falls from the sky as a result of an extremely cold climate condition and is common in the arctic regions of the world.
Snow flakes are formed when ice crystals stick together to form the flakes which usually has a dust or pollen being formed around the area being talked about.
This is also regarded as a type of precipitation such as rain etc and is therefore the most appropriate choice.
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Answer:
hmmm
Explanation:
error of parallax or poor measurement
poor structural material
here given that the velocity of the probe is
now at initial position where t = 0
Now after t = 24 minutes we need to find final components of velocity
now as we know that acceleration is given as
Now for x direction of motion
Now for y direction of motion
now in order to find the magnitude of acceleration we can say
The distance of dodo is 150 cm.
<h3>What is focal length of lens?</h3>
The distance between a lens's center and its focal point is its focal length. A focal point is a location on the principal axis where, following refraction via the lens, light rays parallel to the principal axis either actually meet or appear to meet.
Given parameters:
the focal length of David's lens is: f = 50 cm.
magnification is: m = -0.50
We have to find: distance of dodo, that is, object's distance : u = ?
We know that:
u =f( 1/m -1)
⇒ u = 50(-1/0.50-1) = - 150 cm.
Hence, distance is 150 cm.
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Answer:
the result = g .The correct answer is d
Explanation:
For this problem let's start by finding the center of mass of objects
= 1 / M ∑
we apply this equation to our case
M = m + 2m + 3m
M = 6m
x_{cm} = 1 / 6m (x₁ m + x₂ 2m + x₃ 3m)
x_{cm} = 1/6 (x₁ + 2 x₂ + 3x₃)
We apply Newton's second law to this center of mass
dp / dt = M a
d (M v_{cm}) / dt = M a
let's find the speed of the center of mass
v_{cm} = 1 / 6m (m v + 2m 0 - 3m v)
v_{cm} = ⅓ v
M d v_{cm}/ dt = M a
d v_{cm} / dt = a
at the center of mass the external force of the system is applied, which is the force of gravity
dv_{cm} / dt = g
therefore the result
a = g
The correct answer is d