Answer:
Matter changes state when energy is added or taken away. Most matter changes because of heat energy. Changes in pressure can change matter, too. The atoms and molecules that make up matter are always moving.
Explanation:
<em><u>Radhe</u></em><em><u> </u></em><em><u>Radhe</u></em><em><u>❤</u></em>
Answer:
The starting velocity for ball 1 is 1.00 meter/second. Its ending velocity is 0.25 meter/second.
The change in velocity for ball 1 is 0.25 – 1.00 = -0.75 meter/seconds
Answer:
The answer is 3.33m
Explanation:
The acceleration "a" is constant.
Acceleration is the variation of velocity over time,
.
solving the last equation
,
where
because the airplane starts from rest.
Once again, velocity is the variation of distance over time.

then

where
if we consider the end of the runway as the initial point (this step is for simplicity but you can let it expressed, it's going to cancel anyway).
If
at
, then

and the final expression for the distance is
.
If t = 2s, x = 4.44 m. Which means thad the additional distance is

Explanation:
It is given that,
Mass of the Cadillac, 
Speed of Cadillac,
(towards north)
Mass of Volkswagen,
The cars stuck together and slid to a halt, leaving skid marks angled 35 degrees north of east.
According to the law of conservation of momentum,
The momentum along x axis,
............(1)
The momentum along y axis,
...........(2)
From equation (1) and (2) it is clear that,




So, the Volkswagen going just before the impact is 8.72 m/s. Hence, this is the required solution.