The motion of a particle is given by the equation x(t) = 30 cos(6t). What is the first time at which its kinetic energy is equal to 2 times its potential energy(spring)?

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

What does the law of conservation of mass state?