Answer:
Vapors
Explanation:
We take into account that all the energy from the lightning has been transformed into steam.
We calculate the amount of energy required by water to convert into steam.
From the lightning we received 
of energy, out of which 
has been used to convert the water into steam.
Energy left = 
We use this energy to convert steam into vapors.
With this temperature, we can easily interpret that the vapors will be dissociated in hydrogen and oxygen particles.
The
sun is a ball of hot gases containing different kinds of elements at different
cores. It has a very high temperature that radiates all throughout the Milky
Way galaxy. The sun has three main parts; photosphere, chromospheres
and corona. The outer core of a star located at the chromospheres contains
mostly of hydrogen. Inside the hydrogen is helium then carbon, oxygen, neon,
magnesium silicon and the inert gas. The photosphere is scattered by the loose electrons in the corona’s plasma.
We have by the first law of thermodynamics tha energy is preserved, hence we cannot have over 840kJ per cycle. We have by the laws of thermodynamics (the 2nd one in specific) that the entropy of a system cannot increase. We cannot have an output of 840 kJ per cycle from a heat engine because then that would mean that the entropy would stay the same, while any heat engine increases it. Hence, any value
is acceptable.
Answer:
F=2496 N
Explanation:
Given that,
Mass of SUV, m = 1600 kg
Initial speed, u = 0
Final speed, v = 25 m/s
Distance, d = 200 m
We need to find the net force. Firstly, let's find acceleration using equation of motion.
Net force, F = ma
So, the net force is 2496 N.
Answer:
D) quadruple.
Explanation:
Assuming the same constant acceleration a in both cases, as we have as givens the acceleration a, the distance d, and the initial velocity v, we can use the following kinematic equations in order to compare the distances:
vf² - v₀² = 2*a*d
As the final state of the car is at rest, the final velocity vf, is 0.
⇒ - v₀² = 2*(-a)*d ⇒ d =v₀² / 2*a
1) initial velocity v₀
d₁ = v₀² / 2 a
2 ) initial velocity 2*v₀
⇒ d₂ = (2*v₀)² / 2*a = 4*v₀² / 2*a ⇒ d₂ = 4* (v₀² / 2*a)
⇒ d₂ = 4* d₁
As the equation shows, the distance required to stop, if the initial velocity were doubled, the distance required to stop would quadruple.
