A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 20.0 min at 50.0 km/h, 16.0 min at 70.0 km/h, and 35.0 min at 55.0 km/h and spends 55.0 min eating lunch and buying gas. (a) Determine the average speed for the trip.
58.3

Incorrect: Your answer is incorrect.

Your response differs from the correct answer by more than 10%. Double check your calculations. km/h

(b) Determine the distance between the initial and final cities along the route.
km

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%)

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

What is the rate of change in a objects position?