A 209 Hz and 219 Hz sound are produced next to each other. What is the beat frequency?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)