Roof decks on low-slope roofs must: a contain enough joints to accommodate thermal expansion and contraction. b be adequately stiff to resist excessive deflection. c resist wind uplift forces. d slope toward drainage points at an angle sufficient to drain reliably or accommodatetapered insulation that will slope toward drains. e all of the above.

What are the three ways that an object can accelerate

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?