A spinning top rotates so that its edge turns at a constant speed of 0. 63 m/s. If the top has a radius of 0. 10 m, what is the centripetal acceleration of the edge of the top?.

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

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

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j