James weighs 120 pounds. he ran up the steps which rose 12 feet. john weighs 91 pounds. he ran up the same steps as james. if both boys reached the top of the 12-foot stairs at the same time, which boy had the greatest horsepower?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.