Two airplanes leave an airport at the same time. The velocity of the first airplane is
650 m/h at a heading of 28.7
◦
. The velocity
of the second is 610 m/h at a heading of 90◦
.
How far apart are they after 1.8 h?
Answer in units of m.

The material that keeps its new shape after it is stretched is called?

What is the speed of an object at a given moment?

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?