If the hoop has speed vo at the bottom of the pipe, what is its speed when it has rolled
halfway up the side of the pipe?

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o