A pendulum swings on the surface of the Earth. it has a length of 1.60 meters. what is the period of this pendulum in seconds? A) 0.51 B) 1.02
C) 2.54 D) 1.26

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

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

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?