A passenger with mass 85 kg rides on a Ferris wheel (ride which moves in a vertical circle). The seats travel in a counterclockwise vertical circle of radius 35 m. The Ferris wheel rotates at constant speed and makes one complete revolution every 25 s. a. Calculate the magnitude and direction of the force exerted on the passenger by the seat when she is one-eighth revolution past her lowest point. Note that the seat can exert both a horizontal (frictional) and vertical (normal) force on the passenger. b. What is the minimum coefficient of static friction to prevent the passenger from sliding on the seat when she is one-quarter revolution past her lowest point

The slope of a velocity time graph over any interval of time gives the during that interval

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

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