A proton circulates in a cyclotron, beginning approximately at restat the center. Whenever it passes through the gap between dees, theelectric potential difference between the dees is 270 V.

(a) By how much does its kinetic energyincrease with each passage through the gap?

(b) What is its kinetic energy as it completes 20 passes through the gap?

(c) Let r20 be theradius of its circular path in the dee that it enters as itcompletes those 20 passes, and letr21 be its nextradius, as it enters a dee the next time. By what percentage doesthe radius increase when it changes fromr20 tor21?

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared