What is the heating capacity, in btus, of a cylindrical storage tank of propane with a radius of 0 .75 feet and a height of 2 feet? assume that 1 cubic foot of propane contains 2,516 btus and 1 cubic foot of natural gas contains 1,030 btus. use 3.14 for pi, and round your answer to the nearest btu?

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

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.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?