The waste products of a nuclear fission power plant can best be described as radioactive waste.
These are the by-products from the processes carried out that produce nuclear energy. This type of waste is highly dangerous. A lot of attention has to be paid to the collection and disposal of this waste as it must not reach any near by water bodies for example. It can be deadly for life.
Explanation:
Scientist and astronomers have observed that large gas clouds and massive stars are orbiting around in an accelerated manner in center of our galaxy that is milky way. A massive star S2's motion has been studied and it is found that the star is revolving around the center of the galaxy. From this scientist have confirmed presence of super massive black hole of 3 million solar masses lurking around the center of milky way.
1) If the object changes directions with the same speed, it will be changing its velocity, because velocity is a vector, which depends on both magnitude and direction. Speed is just magnitude regardless of direction.
2) Rotational motion.
The ball's horizontal position in the air is
It hits the wall when 
, which happens at
Meanwhile, the ball's vertical position is
where 
is the acceleration due to gravity, 9.80 m/s^2.
At the time the ball hits the wall, its vertical position (relative to its initial position) is
<u>Answers</u>
D) X: positive
Y: negative
<u>Explanation</u>
The are two types of charges, positive and negative charges.
The electric field charges originate from positive and end up to the negative.
The electric charges move from positive to negative. So from the diagram the above;
X ⇒ Positive
Y ⇒ Negative
