Arubber rod can be charged negatively when it is rubbed with wool. predict what happens when you rub a copper rod with wool

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.