Which bones of the middle ear are responsible for vibrating so sound waves can be passed along? check all that apply. auricle eardrum hammer anvil stirrup

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

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

The energy equivalent of the rest mass of an electron is