10. A lens of focal length 12 cm forms an erect image three times the size of the object. The distance between the object and image is:​

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

How is zig zagging a form of acceleration?