A force of 3 N is perpendicular to a force of 4 N. Find the magnitude of the resultant of the two forces.

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

Explain why you think this diagram shows what happened to the carbon in the biodome.