17.
the size of the arrow in a free-body diagram reflects the the force.

a. slope
b. magnitude
c. type
d. direction

In which of the following is positive work done by a person on a suitcase

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?