A rocket takes off from Earth. It travels 825km in 75 seconds. What is the speed of the rocket?
0 1 km/s
11 km/s
O 1.1 km/s
O 111 km/s

The relationship of both of them

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.

Two 10¢  coins  (dimes)  carrying identical charges  are  lying 2.5 m apart  on a  table.  if each  of  these coins experiences  an  electrostatic force  of  magnitude 2.0 n due  to the  other coin.  the charge on each coin is :     52.2 uc

Answerhave high resistance to flow