Atrain of waves is moving at a speed of 30 m/s. the frequency of the waves is 10 hz. what is the wavelength? a. 300 m c. 3 m b. 30 m d. 0.1 m

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

What object a collides with object b and bounces back its final momentum is?

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.