y (cm) 30 20 10 -x (cm) 10 20 30

The figure shows a composite slab with dimensions d₁ = 11.9 cm, d₂ = 2.94 cm, and d3 = 12.8 cm. Half the slab consists of aluminum (density = 2.70 g/cm³) and half consists of iron (density = 7.85 g/cm³). What are (a) the x coordinate, (b) the y coordinate, and (c) the z coordinate of the slab's center of mass? (a) Number (b) Number (c) Number dy Iron Units Units Units 2d₁ -Midpoint Aluminum dy 11

A 0.455-kg hockey puck, moving east with a speed of 5.05 m/s, has a head-on collision with a 0.730-kg puck initially at rest. Assuming a perfectly elastic collision, what will be the speed (magnitude of the velocity) of each object after the collision? Enter your answers numerically separated by a comma.

Nixon is a tile worker, he hates physics and only likes cutting and shaping his tiles. Her boss has given him a tile. It has a width of 50 cm. The tile must fit around a corner of a fireplace so a piece is sawed out. The extracted piece is a smaller square and its side length is only 25.0 cm. Because of the cutout segment, the center of mass of the ceramic tile shifts a bit from point A to point B. Nixon needs help to find the distance between point A and B the ceramic tile her boss gave him. 50cm 25cm 8 S