A590 g squirrel with a surface area of 920 cm2 falls from a 4.0-m tree to the ground. estimate its terminal velocity. (use the drag coefficient for a horizontal skydiver. assume that the squirrel can be approximated as a rectanglar prism with cross-sectional area of width 11.5 cm and length 23 cm. note, the squirrel may not reach terminal velocity by the time it hits the ground. give the squirrel's terminal velocity, not it's velocity as it hits the ground.) m/s

Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions ψ(x) (such as energy eigenfunctions). (b) solve the schr¨odinger’s equation and by using the boundary conditions of part (a) find all energy eigenfunctions, ψn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levels’ wavefunctions (ψn(x) vs x). don’t forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength λ for the emitted photon? what is the corresponding wavele

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine