Second-order partial differential equations chap. 11 2. show that if the operator l[u] in (8.1) is moving coordinates hyperbolic and a 0, the transformation to x, = x-241, t'=t takes l into a multiple of the wave operator. (that is, the wave operator is another standard orm for a hyperbolic operator.)

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.