Arocket near the surface of the earth is accelerating vertically upward at 10 m/s2. the rocket releases an instrument package. immediately after release the acceleration of the instrument package is: a)20 m/s2 up
b)10 m/s2 up
c) 0
d)10 m/s2 down
e) 20 m/s2 down

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Compare the patterns of the two waves shown in the image. which statement is true about these waves?

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.