A 1.0 kg cart moving right at 5.0 m/son a frictionless track colloids with a 3.0 kg cart moving right at 2.0 m/s the lighter kart as a final speed of 4.0 m/s what is the final speed of the 3.0 kart

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance

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