Billy gets onto a big wheel and goes around once (a total of 30m) in one minute.
When he gets off, he tells Tara that his
displacement was zero. Tara reminds him
that he travelled all the way around the
wheel (30m).
Explain how both Billy and Tara are correct.

Calculate the kinetic energy of earth due to its spinning about its axis. krot = j compare your answer with the kinetic energy of the orbital motion of earth's center of mass about the sun. assume earth to be a homogeneous sphere of mass 6.00 1024 kg and radius 6.40 106 m. the radius of earth's orbit is 1.50 1011 m.

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?