Amotor was overheating because of low voltage at its terminals. a transformer was installed to correct the problem. what is the secondary voltage of the transformer required to supply 240 volts to the motor? (round the final answer to one decimal place.)

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.

If a balloon is taken outside on a very cold day, what will occur?

How to tell if a molecule is polar or nonpolar with electronegativity