Answer:
the acceleration of the car is 10.8 m/s².
Explanation:
Initial velocity (u) = 0
Final velocity (v) = 108 m/s
time (t) = 10 sec
Acceleration(a) = ?
we know
a = (v-u) / t
= 108 / 10
= 10.8 m/s²
Answer:
y = 0.0199 m
Explanation:
The double slit experiment is described by the expression
d sin θ = m λ
Where d is the separation of the slits, λ the wavelength and m an integer that gives the order of interference.
In this experiment the pattern is registered on a screen.
tan θ = y / x
As the angles are very small
tan θ = sin θ / cos θ = sin θ
We replace
d y / x = m λ
Let's look with the initial data for the distance between the slits
d / x = m λ / y
m = 2
d / x = 2 425 10⁻⁹ / 0.0151
.d / x = 5.629 10⁻⁵ m
Now let's look for the spread if we change the wavelength
λ = 560 nm = 560 10⁻⁹ m
y = m λ 1 (d / x)
Let's calculate
y = 2 560 10⁻⁹ 1/ 5.629 10⁻⁵
y = 1.9897 10⁻² m
y = 0.0199 m
Assuming that the box is moving when it is being pulled, Work is done on the box.
So work is the Force times the distance
W=Fd
But what is work actually ? When something moves due to force over some change in distance, it have energy.
But where does this energy come from ? Does it magically appear ? The energy comes from the applied force onto the box.
So the energy have been transferred. And it’s like that throughout the universe
Now to save time, I’ll just tell you the answer: kinetic energy
:)
Antoine-Laurent Lavoisier was the first person to report the four element classification system but also ended up including some compounds rather than elements.
Answer:
True
Explanation:
Modern safer and cheaper nuclear reactors can not only meet the range of our long term energy demands, they can also fight global warming.
Modern techniques provide ways to reduce radioactive waste amount. "A closed fuel cycle may be switched on for new kinds of nuclear plants. Alternatively, the waste is chemically dissuaded to transform the reusable element into fuel. This implies that nuclear waste would not be buried.