The second runner must run 3.3m/s. If the leading runner is 1.5 seconds ahead and there are 30m left, the second runner would need to run slightly faster than the lead in order to finish at the same time. To calculate this I did 30/1.5 which gave me 0.05. I added this onto the speed of the lead runner to get 3.3m/s :)
Thermal energy is an example of kinetic energy , due to motion of particles .
Answer:
density of cube =11.605 g/cm³
Explanation:
density of a substance is the mass per unit volume of that substance.
the density of a substance =
volume of a cube = l³,
l = 19.0mm , lets convert mm to cm
1mm = 0.1cm, thus, 19mm =19*0.1 =1.9cm
length of cube =1.9cm
volume of cube = 1.9³
density of cube =
density of cube =11.605 g/cm³
During the Gupta golden age, Aryabhata was known for discovering that Earth rotated on an axis.
Aryabhata was a professional at mathematics and astronomy. He calculated the value of pi, calculated the volume of a sphere and area of a triangle, characterized the model of the solar system, and many other things. While studying astronomy, Aryabhata came up with an assumption that Earth rotated on an axis while the heavens orbited around it.