The gas pressure inside a piston-cylinder device is initially balanced by atmospheric pressure. the initial pressure is 100 kpa and volume of the gas in the cylinder is 32 cm3. a spring attached to the outside of the piston exerts no force on the piston. the area of the piston is 0.0004 m2. heat transfer to the gas causes the piston to move upwards by a distance of 2 cm. the spring constant is 10 n/cm. (a) determine the final absolute pressure (kpa) of the gas. (b) calculate the final volume (cm3 ) of the gas. (c) show the expansion process on a p-v diag

Study the following reaction carefully. what classification should this reaction have? 4al + 3o2 2al2o3synthesisdecompositionsingle replacementdouble displacement

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)