⦁Rank the following in order of increased size? ⦁Proton
⦁Nucleus
⦁Electron
⦁Atom

Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)