It's nighttime, and you've dropped your goggles into a 3.0-m m -deep swimming pool. If you hold a laser pointer 0.90 m m above the edge of the pool, you can illuminate the goggles if the laser beam enters the water 2.0 m m from the edge.

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 heliocentric and the geocentric models of the solar system included these central principles

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3