A small plastic bead with a mass of 14.8 g and a charge of −0.702
µC is suspended in equilibrium above the center of a large, horizontal sheet of rubber that has a uniform charge density on its surface. Find the charge per unit area on the rubber sheet (in µC/m2).
µC/m2
(b)
What If? What are the magnitude and direction of the acceleration of the piece of plastic if its charge is doubled? (Enter the magnitude in m/s2.)
magnitude ? m/s2
direction ?

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

There are 3 ways heat can be transferred: through solids, called , through liquids and gases , called , and through electromagnetic waves, called

Geologists get to play with chemistry, physics, and history! and what a history you will meet as youwork your way through the course. starting at the beginning, the textbook provides the scientifically acceptedstart of the and promises that you'll get to explore some of the evidence for that scientific view, later inthe semester. meanwhile, which is more nearly correct of the scientifically accepted view? a) the earth formed when the big bang caused older materials to fall together, about 14 billion years ago.b) the earth formed from the falling together of older materials, about 4.6 billion years ago.c) the earth formed in the big bang, about 6000 years ago.d) the earth is eternal, having been here forever and promising to be here forever.e) the earth was assembled by gigantic space beavers, which gnawed down the primordial tree of life andpiled its branches together to form the planet.