Answer:
Explanation:
First of all, we have to calculate the heat released by the steam whem it turns into liquid water. This is given by:
where
is the mass of steam
is the latent heat of vaporization
Substituting,
Now we find the heat absorbed by the ice when it turns into liquid water:
where
is the mass of ice
is the latent heat of fusion
So,
Then, we call:
the heat absorbed by the ice (now liquid water) till reaching the equilibrium temperature T, where
is the specific heat capacity of water
the heat released by the steam (now liquid water) till reaching the equilibrium temperature T
Since the total heat absorbed must be equal to the total heat released, we have:
And now we can solve to find T:
When its still the form of jelly, it is flammable, but it does not go everywhere or it doesn't evaporate.
I think it depend on the curvature of the reflective surface, right? if it is an Mirror, then the angles should mirror itself.
(a) time taken for the car to accelerate from v to 2v = t =
(b) velocity of the car moving at 2t seconds = ΔV = 2at
(a) we know that,
a=
where, is the final velocity
is the initial velocity
a = acceleration
t = time
Time taken to accelerate from V to 2V:
t =
(b) We know that,
a=
where, is the final velocity
is the initial velocity
a = acceleration
t = time
how fast is the car moving at 2t seconds after starting,
we can represent - = ΔV
at time = t= 2t, it becomes
a= = a = ΔV/2t
t= ΔV/2a
ΔV = 2at
<h3>What is acceleration?</h3>
Rate of change of velocity with time, both in terms of speed and direction is known as acceleration.
<h3>What is speed?</h3>
- the rate at which an object's location changes in any direction.
- The distance traveled in relation to the time it took to travel that distance is how speed is defined.
- Since speed simply has a direction and no magnitude, it is a scalar quantity.
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Kinetic and potential energy