<span>The
kinetic energy is the work done by the object due to its motion. It is
represented by the formula of the half the velocity squared multiply by the
mass of the object. In this problem, you have two vehicles, the other one is large and the
other one is small. Let us assume that they travel with the same velocity. Note
that the kinetic energy is proportional to the mass of the object. So when you
increase the mass of the other, it also increases the kinetic energy of that
object. The same holds true for the two vehicles. The larger the vehicle, its
kinetic energy is also large and therefore its stopping distance will be longer
than that of the smaller vehicle.</span>
Viron = 4/3 πr Fr^3
Valu = 4/3 πr Al^3
pFr * 4/3πrfe^3 = pAl*4/3πrAl^3
or
rAl =
Hope this helps
Answer:
The speed of the light ray is halved
Explanation:
The index of refraction of a medium is the ratio between the speed of light in a vacuum (c) and the speed of light in the medium (v):
For medium X, we have
(1)
For medium Y, we have
(2)
Dividing (1) by (2), we find
(3)
In this problem, the index of refraction of medium Y is twice as great as the index of refraction of medium X:
Substituting this into eq.(3), we get
So, as a light ray travels from medium X into medium Y, the speed of the light ray is halved.
Answer:
The answer is "Speed".
Explanation:
In the question, the Speed is the correct answer because it can be viewed as its rate from, which a length is covered via an object. It is also divided by time into other components of distance. Its SI unit of speed seems to be the meter/second, but still, the kilometer/hour or, in the Us UK, miles per hour is the most basic fundamental of speed in everyday use.
Answer:A satellite maintains its orbit by balancing two factors its velocity the speed it takes to travel in a straight line and the gravitational pull that Earth has on it. A satellite orbiting closer to the Earth requires more velocity to resist the stronger gravitational pull.
Explanation: