Ahorse pulls a 300-kilogram carriage with a force of 4000 Newtons to the right. A frictional force of 2500 Newtons act on the carriage as the horse pulls it. What is the acceleration of the carriage?

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 why electric current cannot exist if a current doesn't have a voltage source.

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.