Vector A is 3.0 units in length and points along the positive x-axis; vector B is 4.0 units in length and points along a direction 150° from the positive x-axis. What is the magnitude of the resultant when vectors A and B
are added?
a. 7.0
b. 6.7
c. 4.7
d. 2.1

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states