Answer:
option B
Explanation:
The correct answer is option B
Comets are the frozen snowball that is made of different gases and which rotates around the sun.
Comets are generally icy but when comets come near to the sum they get warm and release gasses which can be seen from the earth.
Comet produces a visible atmosphere or coma.
examples of comets are Halley's Comet, Comet Encke.
The orbit of comets is entirely beyond the orbit of Neptune.
Nswer
<span>Work done = Pressure * ΔV [ change in volume ] </span>
<span>If ΔV=0, then no work is done </span>
<span>Zero work thermodyanamic process is called ' isochoric process.' </span>
<span>For example if a gas heated in a rigid container: the pressure and temperature </span>
<span>of the gas will increase, but the volume will remain the same. </span>
<span>This is called an isochoric thermodynamic process. </span>
<span>It is actually possible to do work on a system without changing the </span>
<span>volume, as in the case of stirring a liquid</span>
A stratovolcano is a conical volcano consisting of layers of solid lava flows mixed with layers of other rock.
A cinder cone volcano doesn’t have any horizontal layers, and is instead a steep conical hill of tephra that accumulates around and downwind from the vent.
Answer:
20.4
Explanation:
Given:
y₀ = 0 m
v₀ = 20.0 m/s
v = 0 m/s
a = -9.80 m/s²
Find: y
v² = v₀² + 2a (y − y₀)
(0 m/s)² = (20.0 m/s)² + 2 (-9.80 m/s²) (y − 0 m)
y = 20.4 m
Diagonal of cardboard=displacement to hole
So displacement till edge
Total distance
From centre to hole displacement
