When the train reaches the bottom of the track and is traveling along the ground, its kinetic energy is 2,000 J.
<span>the relationship between the relief of an area and the contour interval on a map of the area is A contour line </span>
The baseball one because it shows that the ball "soars" (accelerates) due to the force applied F=ma
Answer:
1
Explanation:
The ratio of their nuclear densities is 1, as nuclear density is constant for all nuclei.
First satellite was Sputnik and it was a race then to send satellites!! Everyone starts experimenting how to launch.
first try was on a dog , Laika !! It was send to space as it is long after sputnik is placed in orbit !!
Now you know everyone knows rocket science and the most active are ISRO (India) and NASA (USA) !!