In a classic carnival ride, patrons stand against the wall in a cylindrically shaped room. Once the room gets spinning fast enough, the floor drops from the bottom of the room! Friction between the walls of the room and the people on the ride make them the stick to the wall so they do not slide down. In one ride, the radius of the cylindrical room is R = 6.1 m and the room spins with a frequency of 21.7 revolutions per minute. What is the speed of a person stuck to the wall? m/s What is the normal force of the wall on a rider of m = 53.0 kg? N What is the minimum coefficient of friction needed between the wall and the person? If a new person with mass 106.0 kg rides the ride, what minimum coefficient of friction between the wall and W the person would be needed? Which of the following changes would decrease the coefficient of friction needed for this ride? increasing the rider's mass increasing the radius of the ride increasing the speed of the ride increasing the acceleration due to gravity (taking the ride to another planet) To be safe, the engineers making the ride want to be sure the normal force does not exceed 1.9 times each ^ persons weight - and therefore adjust the frequency of revolution accordingly. What is the minimum coefficient of friction now needed?

Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r