Vadim try to sell his wife a "gold" bracelet to jeweler in " jewelry exchange" for $100. an jeweler drops it in a beaker of water and the volume raises 40 cm3 and the mass is determined to be 2 g, the bracelet then is gold? gold density is 19.32 grams per cubic centimeter

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

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%)

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?