Amotorcycle traveling 95.0 km/hr approaches a car traveling in the same direction at 87.0 km/hr. when the motorcycle is 54.0 m behind the car, the rider accelerates and passes the car 17.0 s later. what is the acceleration of the motorcycle (in meters/second^2)?

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.

What are similarities and differences between refraction, reflection, diffraction and absorption?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.