(Solved): (5 points) Block 1 rests on top of block 2 as shown in the figure at right. A spring is attached to ...

(5 points) Block 1 rests on top of block 2 as shown in the figure at right. A spring is attached to block 2, driving oscillations across a frictionless horizontal surface. These oscillations have a period of

. Block 1, which moves with block 2 due to static friction, begins to slip when the amplitude is increased to

. What is the coefficient of static friction,

, between bl (5 points) The energy diagram at right is for the molecular bond in a

molecule. In a very simplified model of the oscillations in the bond, we assume that the

atom is at rest while the

atom oscillates because the

atom has so much more mass than the

atom. If the mass of a hydrogen atom is 2

, estimate the frequency of its oscillation,

. Pay careful attention to the units on the graph (the bond length units are

, not

! Potential energv (

) 4 3 2 1