No me sale este problema :c, plano inclinado

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

The researcher who studied the ability of cats to learn to escape from puzzle boxes was

How are elastic and inelastic collisions different? give two or more ways. your answer should have at least 2 sentences.