Let's consider tunneling of an electron outside of a potential well. The formula for the transmission coefficient is Te-2L, where L is the width of the barrier and C is a term that includes the particle energy and barrier height. For a particular situation, if C 1.0 nm-1, and you find the tunneling coefficient is T-0.010 (1 % of the electron tunnels through the barrier), then what is the width of the barrier L? e-2CL, where Select the correct answer 1 of 3 attempts used

a.1.0 nm
b. 1.2 nm
c. 2.3 pm
d. 4.6 nm
e. 2.3 nm

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.