For a science experiment, Lorraine is testing a cloth that is electrically charged and an uncharged cloth to see if they will attract an uncharged object. Which cloth is the control in her experiment? The charged cloth
The uncharged cloth
The uncharged object
Both cloths

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

What object a collides with object b and bounces back its final momentum is?