Two cars, A and B, are travelling with the same speed of 40 m/s, each having started from rest. Car A has a mass of 1.20 x 10 3 kg, and car B has a mass of 2.00 x 10 3 kg. Compared to the work required to bring car A up to speed, how much additional work is required to bring car B up to speed

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.

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.