What is the angle of incidence if a reflected wave bounces off a mirror at an angle of 65 degrees?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

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