Asprinter can go from a state of resting to running at 7 m/s in just 3 seconds. what is the sprinter's average acceleration?

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

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.

Which of the following are guidelines to follow for obtaining accurate observations