. A car drops down from a height of 20m along a roller coaster, what is its speed
as it reaches ground level?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k