The position of a particle is given by the function x = ( 3t^3 − 7t^2 + 12 ) m, where time is in seconds. At what time does the particle reach its minimum velocity?

What is the minimum velocity?

At what time is the acceleration zero?

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Can a molecule have bond dipoles but not have a molecular dipole?