The speed 120 km/h is about

25 m/s

33 m/s

42 m/s

50 m/s

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

J. j. thomson’s experiment disproved the theory that an atom

Determine the time it takes for a satellite to orbit the earth in a circular "near-earth" orbit. the definition of "near-earth" orbit is one which is at a height above the surface of the earth which is small compared to the radius of the earth, so that you may take the acceleration due to gravity as essentially the same as that on the surface. does your result depend on the mass of the satellite?