A boy is going down a slide. As he reaches the bottom, friction causes him to slow down and stop. Which one of Newton's laws is this? 2nd law
3rd law
1st law
4th law

Identify the error in the sentence. my cat was so enormously overweight that the vet suggested, much to my cat's dismay putting him on a diet. a. overweight c. dismay b. suggested, d. diet.

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

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.