Atoms move at different speeds because of different amounts of space between each other (lots of space in a liquid so they move faster then in a solid where there is almost no space)
To reduce the internal energy U of an ideal gas you need the gas to lose heat and/or do work.
Answer:
C. vx
F. ax
G. ay
Explanation:
The projectile moves along a curved path towards the ground, so its x and y positions change.
Since there is no applied force in the x-direction, the acceleration in the x-direction is zero. This means, ax and vx do not change.
The projectile is under the influence of gratify, which is directed towards the ground. So its velocity increases, because its y-component of the velocity increases.
However, the y-component of its acceleration is constant, since it is gravitational acceleration.
Period = 6 seconds and 
.
<u>Explanation:</u>
We have , the motion of a swing that requires 6 seconds to complete one cycle. Period is the amount of time needed to complete one oscillation . And in question it's given that 6 seconds is needed to complete one cycle. Hence ,Period of the motion of a swing is 6 seconds . Frequency is the number of vibrations produced per second and is calculated with the formula of 
. SI unit of frequency is Hertz or Hz. We know that time period is 6 seconds so frequency =
⇒ 
⇒ 
⇒
Therefore , Period = 6 seconds and .
Answer:
Monarchy is rule from kings and queens
Explanation:
