On a dry road, a car with good tires may be able to brake with a constant deceleration of 4.87 m/s2. (a) how long does such a car, initially traveling at 23.1 m/s, take to stop? (b) how far does it travel in this time?

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

What is friction? how does it affect the motion of an object?