Electron transfer between redox centers in proteins is controlled by electron tunneling. If we model a bound electron as in a box, if the distance between the redox centers is 0.582 nm and the tunneling constant C =C= 12.1 ~\text{nm}^{-1} nm −1 , what is the tunneling coefficient for electron tunneling?

Aball is thrown straight up into the air with a speed of 21 m/s. if the ball has a mass of 0.1 kg, how high does the ball go? acceleration due to gravity is g = 9.8 m/s^2. a. 22.5 m b. 20.0 m c. 25.0 m d. 17.5 m

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane