Two whistles blow at the same time. The first whistle has a frequency twice that of the second whistle (it is a higher pitch). Which sound will reach you first?

Drag each tile to the correct box. tiles bra i sequence

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

What is the coefficient of kinetic friction μk between the block and the tabletop?