You need a piece of 3/4-inch rigid conduit that's located between a section of conduit that ends at a distance of 5 feet from a wall and an outlet box that's located 4 feet up that wall. If you're going to thread the new piece before bending it, then the length of this section of conduit will need to be A. 8 feet 4 inches.
B. 9 feet 0 inches.
C. 9 feet 4 inches.
D. 8 feet 8 inches.

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

When an object is heated it contracts. a. true b. false

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?