Apositive charge is uniformly distributed throughout a very long cylindrical volume of radius r. the charge per unit volume is p. a. find the electric field e everywhere as a function of the distance r from the axis of the cylinder. b. find the electric potential o everywhere as a function of r.

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Explain what will happen if decomposers were apsent from a forest ecoysystem.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d