Physics, 21.03.2020 10:00, annajquinterov
Sally enjoyed the opportunity to collect data from standing waves in a spring. She and her partner held the ends of the spring 4.0 meters apart. There were 5 nodes in the standing wave produced. Sally moved her hand fromt he rest position back and forth along the floor 20 times in 4 seconds. What is the frequency of the wave Sally made?a. 10/secondb. 5 hzc. 10 hzd. 1 hz
Answers: 3
Physics, 22.06.2019 06:30, bluevibe
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
Physics, 22.06.2019 10:30, tyw3366812778
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Sally enjoyed the opportunity to collect data from standing waves in a spring. She and her partner h...