For a rocket to leave the gravitational pull of the Earth, it needs to reach a very special speed. Once it reaches this speed, the gravity of the Earth can no longer pull it back, and it can "boldly go" off into space. What term is used to describe this special speed?

Group of answer choices

Escape Velocity

Orbital Velocity

Terminal Velocity

Tangential Velocity

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?