Arocket is launched from the surface of the earth with mass me and radius r, to escape from the earth (a) [10] find the required velocity impulse (or escaping velocity), neglecting the other forces such as air friction. here the velocity impulse is the velocity gain of the rocket under the assumption that the acceleration of the rocket by ejection is done instantly. (b) [10] given that the mass of the rocket without fuel is mo and the ejection velocity is u, find the required initial mass m of the rocket.

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2