There are multiple tuning forks present in the room, and annie strikes one with a natural frequency 400 HZ. Which of these other tuning folks will begin to vibrate through resonance and make the sound louder

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?