A500-kg elevator is raised to a height of 10m in 10 seconds. calculate the power of the motor

Phase changes are chemical changes. true or false

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a. is a south pole because the field hnes spread out from this end b. a north pole because the field lines spread out from this end c. a nouth pole because the field lines enter the magnet at this end d. is a north pole because the field lines enter the magnet at this end