describe the particle motion diagram for two runners during a race in which the first runner crosses the finish line as the other runner is 3/4 of the way to the finish line

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

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

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus