Answer:
distance traveled is a total length of the path traveled between two positions.
Answer:
1) improve the quality of data
2) new system is more simple and elegant
Explanation:
the reason for being selected new system of determining planetary positions are
1) he want to improve the quality of data for having new planetary positioned value.
b) he believed that new system is more simple and elegant for determining planetary positions by both skilled and unskilled user i.e. astronomers and general public
Answer:

Explanation:
The rest energy is the energy associated with the base ball at zero velocity which is expressed as

Note: the speed C is the speed of light which is expressed as 3*10^8
while the kinetic energy is the energy associated with the ball during its motion and is expressed as

the ratio can be expressed as

Yes, It probably true. Because the Luster it has a nonmetal, is going to be found in periodic table.
Hope it helped you.
-Charlie
Answer: What is the acceleration of an object that moves at constant velocity? Acceleration is Zero
What is the net force on the object in this case? The ner force is also Zero
Explanation: If the velocity is constant means that the acceleration is zero, from Newton second law is clear that net force is also zero
Fnet= m* a as v is constant a=0 this Fnet is zero.