In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 2.00 m in diameter (the figure ). the elevator is raised and lowered by turning the disk, and the cable does not slip on the rim of the disk but turns with it. a. at how many rpm must the disk turn to raise the elevator at 25.0 cm/s? b. to start the elevator moving, it must be accelerated at {\textstyle{1 \over 8}}\,g. what must be the angular acceleration of the disk, in {\rm{rad/s}}^2? c. through what angle (in radians ) has the disk turned when it has raised the elevator 2.85 m between floors? d. through what angle (in degrees ) has the disk turned when it has raised the elevator 2.85 m between floors?

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.

Neutrons are placed in a magnetic field with magnitude 2.30 t. part a part complete what is the energy difference between the states with the nuclear spin angular momentum components parallel and antiparallel to the field? δe δ e = 2.77×10−7 ev previous answers correct part b part complete which state is lower in energy: the one with its spin component parallel to the field or the one with its spin component antiparallel to the field? which state is lower in energy: the one with its spin component parallel to the field or the one with its spin component antiparallel to the field? parallel antiparallel previous answers correct part c part complete how do your results compare with the energy states for a proton in the same field (δe=4.05×10−7ev)? how do your results compare with the energy states for a proton in the same field this result is smaller than but comparable to that found in the example for protons. this result is greater than but comparable to that found in the example for protons. previous answers correct part d the neutrons can make transitions from one of these states to the other by emitting or absorbing a photon with energy equal to the energy difference of the two states. find the frequency of such a photon. f f = mhz previous answersrequest answer incorrect; try again; 5 attempts remaining

For two variables in a direct proportion, what is the result of doubling one variable?